Archive Issue

GENUS Pothos: A REVIEW OF CHEMICAL CONSTITUENTS AND BIOLOGICAL ACTIVITIES
D. Dutta, M. J. Bordoloi, and N. K. Bhattacharyya

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Rasayan J. Chem, 14 (4), 2161-2170 (2021)

Keywords: Pothos scandens, Pothos chinensis, Phytochemistry, Anticancer, Antimicrobial.

DOI: http://doi.org/10.31788/RJC.2021.1446353

COAL MINING WASTE IS A VALUABLE SECONDARY RAW MATERIAL
U. Nazarbek, P.Abdurazova, S. Nazarbekova, M. Kambatyrov and Y. Raiymbekov

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Rasayan J. Chem, 14 (4), 2171-2176 (2021)

Keywords: Coal Mining Waste, Technogenic Waste, Humic Substances, Chemical Industry.

DOI: http://doi.org/10.31788/RJC.2021.1446416

GELATIN AS A CORROSION BIOINHIBITOR AT SALINE MEDIA FROM FISH BONE OF MACKEREL (Scomberomorus sp)
Fataa Kusumattaqiin, Bagus Agam Pradana, Abdul Halim

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Rasayan J. Chem, 14 (4), 2177-2182 (2021)

Keywords: Gelatin, Bioinhibitor, Scomberomorus sp, Corrosion Rate, Protective Film

DOI: http://doi.org/10.31788/RJC.2021.1446414

QBD BASED ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE SEPARATION AND QUANTIFICATION OF AGOMELATINE AND ITS IMPURITIES IN SOLID ORAL DOSAGE FORMS USING HPLC
Somana Siva Prasad, Bikshal Babu Kasimala and Venkateswara Rao Anna

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Rasayan J. Chem, 14 (4), 2183-2190 (2021)

Keywords: Agomelatin, HPLC Analysis, Quality by Design Approach, Method Validation.

DOI: http://doi.org/10.31788/RJC.2021.1446426

TWO STEP SYNTHESIS OF INDAZOLE DERIVATIVES AND THEIR ANTI-CANCER EVALUATION
G. Laxman, Jagadeesh Kumar Ega and Kavitha Siddoju

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Rasayan J. Chem, 14 (4), 2191-2195 (2021)

Keywords: Indazole, Therapeutic Applications, Cyclization, Anticancer Activity

DOI: http://doi.org/10.31788/RJC.2021.1446362

DISPERSION BEHAVIOR OF CATIONIC SURFACTANT TREATED REDUCED GRAPHENE OXIDE IN DIFFERENT SOLVENTS
K.N. Amba Sankar, P. Nandakumar, C. Sathishkumar, R. Deepa and Kallol Mohanta

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Rasayan J. Chem, 14 (4), 2196-2201 (2021)

Keywords: CRGO, Organic Solvents, Dispersion Stability, TEM, I-V Characterization

DOI: http://doi.org/10.31788/RJC.2021.1446452

ELECTROCHEMICAL BEHAVIOR OF MANGANESE DIOXIDE WHEN A PART OF THE COMPOSITE ELECTRODE AND ELECTROCHEMICAL LEACHING OF MANGANESE ORE IN A SULFURIC ACID MEDIUM
A.B. Makhanbetov, B.E. Myrzabekov, T.E. Gaipov, A.Tazhibayev and U.A. Abduvaliyeva

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Rasayan J. Chem, 14 (4), 2202-2208 (2021)

Keywords: Manganese, Manganese Dioxide, Composite Electrode, Electrochemical Leaching, Polarization Curves.

DOI: http://doi.org/10.31788/RJC.2021.1446491

CONTROLLED RELEASE STUDIES OF HYDROXYCHLOROQUINE SULPHATE (HCQ) DRUG-USING BIODEGRADABLE POLYMERIC SODIUM ALGINATE AND LIGNOSULPHONIC ACID BLENDS
S. Giridhar Reddy

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Rasayan J. Chem, 14 (4), 2209-2215 (2021)

Keywords: Hydroxychloroquine Sulphate, Biodegradable Polymers, Sodium Alginate, Controlled Release, Hydrogels.

DOI: http://doi.org/10.31788/RJC.2021.1446508

SYNTHESIS AND TESTING CATALYSTS BASED ON FLY ASH FROM THERMAL POWER PLANTS AND NATURAL ZEOLITE FOR GAS EMISSIONS PURIFICATION AND CATALYTIC PROCESSING OF HEAVY OIL
T.V. Shakiyeva, L. R. Sassykova, A.A. Khamlenko, A.R. Sassykova, A.A. Batyrbayeva, Zh. M. Zhaxibayeva, M. A. Kozhaisakova, A. Muratova, B.T. Dossumova, T. S. Abildin and M. Zhumagali

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Rasayan J. Chem, 14 (4), 2216-2223 (2021)

Keywords: Fly Ash, Natural Zeolite, Water and Gas Purification, Highly Toxic Organic Compounds, Catalytic Cracking, Fuel Oil.

DOI: http://doi.org/10.31788/RJC.2021.1446511

POLY (VINYL ALCOHOL)/ CARBOXYMETHYL CELLULOSE-SODIUM SALT/ CARROT FIBER-CONTAINING COMPOSITE THIN FILMS: THERMOMECHANICAL AND BIODEGRADATION STUDY
Seema Rani, Kapil Gulati, Neera Raghav and Sanjiv Arora

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Rasayan J. Chem, 14 (4), 2224-2235 (2021)

Keywords: Biocomposites, Carboxymethyl Cellulose, Degradation, Poly (Vinyl Alcohol), Thermal

DOI: http://doi.org/10.31788/RJC.2021.1446445

SIMULTANEOUS QUANTIFICATION OF TIAGABINE AND ITS RELATED SUBSTANCE BY A STABILITYINDICATING RP-HPLC METHOD
V. N. V. Kishore, G.V. Ramana, R. Venkata Nadh and Giri Prasad Gorumutchu

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Rasayan J. Chem, 14 (4), 2236-2245 (2021)

Keywords: Tiagabine, Related Substance A, HPLC Analysis, Method Validation, Forced Degradation.

DOI: http://doi.org/10.31788/RJC.2021.1446412

SYNTHESIS, CHARACTERIZATION, ANTIMICROBIAL AND ANTI-INFLAMMATORY STUDIES OF SOME NOVEL SCHIFF BASE METAL COMPLEXES DERIVED FROM THE DRUG, DICLOFENAC
Kondareddy Gopinath Shilpa, Kengunte Halappa Shivaprasad and Medehal Rudrannagari Archana

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Rasayan J. Chem, 14 (4), 2246-2254 (2021)

Keywords: Coordination Compounds, Schiff Base, Metal Complexes, Diclofenac, Antimicrobial, Antiinflammatory.

DOI: http://doi.org/10.31788/RJC.2021.1446507

MINERALOGICAL AND MORPHOLOGICAL CHARACTERIZATION OF ORGANICALLY AMENDED SOIL
R. Suya Padhra Haridha, F. Jeyamangalam, R. Mary Jenila and S. C. Vella Durai

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Rasayan J. Chem, 14 (4), 2255-2262 (2021)

Keywords: EDAX, FTIR, Mineralogical Analyses, Organic Amendment, PXRD, SEM.

DOI: http://doi.org/10.31788/RJC.2021.1446515

SOLVATOCHROMIC STUDIES ON 4-(1,4 DIPHENYL-1H IMIDAZOLE-2-YLTHIO)-2H-CHROMEN-2-ONE
K. Sujatha and Netravati Khanapurmath

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Rasayan J. Chem, 14 (4), 2263-2272 (2021)

Keywords: Coumarin, Imidazole, Charge Transfer, Absorption Spectra, Emission Spectra

DOI: http://dx.doi.org/10.31788/RJC.2021.1446171

INFLUENCE OF VARIOUS PARAMETERS ON THE DEFLUORINATION OF WET-PROCESS PHOSPHORIC ACID
G. Shaimerdenova, K. Zhantasov, A. Kadirbayeva, G. Shaimerdenova, G. Jussupbekova, Zh. Iztayev and B. Tastanbekova

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Rasayan J. Chem, 14 (4), 2273-2278 (2021)

Keywords: Wet-process, Phosphoric Acid, Defluorination, Cleaning Acid, Sodium Silicofluoride, Deposition of Impurities, Dry Sodium Salt.

DOI: http://doi.org/10.31788/RJC.2021.1446472

In-vitro ANTI-INFLAMMATORY AND ANTI-ARTHRITIC ACTIVITY OF ETHANOLIC EXTRACT OF Hibiscus rosa sinensis LEAVES
Talapudi Sruthi, Chinta Koteswara Rao, R.A. Zerubabel Michael, S. Monica Nissy and D. V. Surya Prakash

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Rasayan J. Chem, 14 (4), 2279-2284 (2021)

Keywords: Hibiscus rosa sinensis, Anti-inflammatory, Anti-arthritic, Human Red Blood Cell (HRBC), Protein Denaturation.

DOI: http://doi.org/10.31788/RJC.2021.1446459

ECO-FRIENDLY SYNTHESIS, SPECTRAL AND BIOPOTENTIAL INVESTIGATION OF Zn(II) AND Ni(II) COMPLEXES WITH BIO-ACTIVE SCHIFF BASE
C. Veeravel, K. Rajasekar, S. Balasubramaniyan and R. Selvarani

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Rasayan J. Chem, 14 (4), 2285-2291 (2021)

Keywords: Schiff Base, Zn(II) Complex, Ni(II) Complex, Antibacterial, Antifungal

DOI: http://doi.org/10.31788/RJC.2021.1446672

MODIFIED MAGNETIC CHITOSAN FOR METHYLENE BLUE ADSORPTION
Haya Fathana, Rahmi, Susilawati, Muhammad Adlim and Surya Lubis

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Rasayan J. Chem, 14 (4), 2292-2297 (2021)

Keywords: Adsorbent, Fe3O4, Chitosan, Methylene Blue, Sulfonation

DOI: http://doi.org/10.31788/RJC.2021.1445944

MOLECULAR INTERACTION OF CURCUMIN, DEMETHOXYCURCUMIN, BISDEMETHOXYCURCUMIN, AND TURMERONE OF Curcuma longa WITH TYROSINASE AND TYROSINASE-RELATED PROTEIN-1
D. Firmansyah, S. A. Sumiwi, N. M. Saptarini and J. Levita

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Rasayan J. Chem, 14 (4), 2298-2303 (2021)

Keywords: Curcumin, Curcuma longa, Tyrosinase, Tyrosinase-related Protein

DOI: http://doi.org/10.31788/RJC.2021.1446418

EXTRACTION OF NON-FERROUS METALS AND RHENIUM FROM LEAD DUSTS OF COPPER PRODUCTION
O.S. Baigenzhenov, A. Akkenzheyeva, M. Turkmenbayeva, M. Kizdarbekova and M. D. Turan

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Rasayan J. Chem, 14 (4), 2304-2310 (2021)

Keywords: Lead Dusts, Copper, Zinc, Rhenium, Leaching.

DOI: http://doi.org/10.31788/RJC.2021.1446359

GROWTH OF MULTI-WALLED CARBON NANOTUBES ALONG WITH GRAVITY BY SPRAY PYROLYSIS OF NATURAL PRECURSOR
E. Kanagaraj, P. Mahalingam, R. Siddharthan and P. Sivakumar

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Rasayan J. Chem, 14 (4), 2311-2317 (2021)

Keywords: Carbon Nanotubes, Natural Precursor, Flow Rate, Growth Mechanism, Spray Pyrolysis

DOI: http://doi.org/10.31788/RJC.2021.1446485

PHYTOCHEMICAL ANALYSIS OF SELECTED INDIAN MEDICINAL PLANTS BY HR-LCMS SPECTRA METHOD
Nateshan Anil and Venkateswara Rao Talluri

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Rasayan J. Chem, 14 (4), 2318-2326 (2021)

Keywords: HR-LCMS, Anthelmentic Activity, Antibacterial Activity, Phytochemicals.

DOI: http://doi.org/10.31788/RJC.2021.1446473

GEOCHEMISTRY ANALYSIS OF GROUNDWATER QUALITY: A CASE STUDY OF THE JEUNIB BASIN
Muhammad Irham, Muhammad Irpan, Dewi Sartika, Gartika Setiya Nugraha and Dian Budi Dharma

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Rasayan J. Chem, 14 (4), 2327-2339 (2021)

Keywords: Geochemistry Analysis, Groundwater Quality, Groundwater Facies, Rock Lithology, Rock Outcrop.

DOI: http://doi.org/10.31788/RJC.2021.1446454

EFFECT OF DIVINYLBENZENE AND DICUMYL PEROXIDE ON THE PROPERTIES OF STANDARD INDONESIAN RUBBER'S (SIR-3L) BLENDS
Adiansyah, I. Elisabeth Purba, Z. Paulanda , Yusnaidar, I.P. Mahendra and S. Sijabat

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Rasayan J. Chem, 14 (4), 2340-2343 (2021)

Keywords: Standard Indonesian Rubber (SIR-3L), Low Density of Polyethylene (LDPE), Blend, Divinylbenzene, Dicumyl Peroxide

DOI: http://doi.org/10.31788/RJC.2021.1446228

EFFECT OF ANNEALING TEMPERATURE AND TIME ON THE PHOTOVOLTAIC PERFORMANCE OF NaSbS2 SEMICONDUCTOR-SENSITIZED SOLAR CELLS PREPARED BY SILAR METHOD
Siti Utari Rahayu, Ming-Way Lee, Muhammad Noer Nasruddin, Kerista Sebayang and Herty Afrina Sianturi

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Rasayan J. Chem, 14 (4), 2344-2351 (2021)

Keywords: Annealing Temperature, Annealing Time, Sodium Antimony Sulfide, Ternary Metal Chalcogenides, SILAR, Semiconductor-Sensitized Solar Cells.

DOI: http://doi.org/10.31788/RJC.2021.1446555

APPLICATION OF TAMARIND SEEDS BASED CHELATING RESIN IN EFFLUENT TREATMENT
Neha Parihar, Kamini Sharma, Sawai Singh Rathore and Vikal Gupta

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Rasayan J. Chem, 14 (4), 2352-2356 (2021)

Keywords: TKP (Tamarind Kernel Powder), L-isoleucine, Chelating Resin and Polysaccharide

DOI: http://doi.org/10.31788/RJC.2021.1446528

ANTIOXIDANT AND ANTIDIABETIC POTENTIALS OF Cucurbita pepo LEAVES EXTRACT FROM THE GULF REGION
S. Chigurupati, Y.K. AlGobaisy, B. Alkhalifah, A. Alhowail, S. Bhatia, S. Das and S. Vijayabalan

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Rasayan J. Chem, 14 (4), 2357-2362 (2021)

Keywords: Cucurbita pepo, Antioxidant, Anti-diabetic, Î± amylase, Î±-glucosidase

DOI: http://doi.org/10.31788/RJC.2021.1446455

QSAR APPROACH AND SYNTHESIS OF CHALCONE DERIVATIVES AS ANTIMALARIAL COMPOUND AGAINST Plasmodium Falciparum 3D7 Strain
S. S. W. Waskitha, F. E. Mulyana, N. F. Riza, Y. M. Stansyah, I. Tahir and T. D. Wahyuningsih

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Rasayan J. Chem, 14 (4), 2363-2370 (2021)

Keywords: Chalcone, QSAR Approach, Antimalarial Agent, Claisen-Schmidt Condensation, Molecular Docking

DOI: http://doi.org/10.31788/RJC.2021.1445867

ABSORPTION CHARACTERISTICS OF NAPA SOIL AS CONGO RED DYE ADSORBENT IN SOLUTION WITH CONTINUOUS SYSTEM
Mawardi Mawardi, Bahrizal Bahrizal , Illyas Md Isa, Syarifah Aini, Rizky Z Putra and Fadhlurrahman Mawardi

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Rasayan J. Chem, 14 (4), 2371-2378 (2021)

Keywords: Napa Soil, Congo Red, Adsorption, Adsorbent, Pre-concentration

DOI: http://doi.org/10.31788/RJC.2021.1446197

THE EFFECT OF NiO LOADS ON CATALYTIC ACTIVITY OF NiO/ZSM-5 FOR TRANSESTERIFICATION OF RUBBER SEED OIL
K. D. Pandiangan, W. Simanjuntak, D. I. Alista and I. Ilim

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Rasayan J. Chem, 14 (4), 2379-2385 (2021)

Keywords: Rubber Seed Oil, Biodiesel, Heterogeneous Catalyst, NiO/ZSM-5

DOI: http://doi.org/10.31788/RJC.2021.1446286

WOUND HEALING BIOACTIVITY OF Curcuma Longa Linn
Wardatul Husna Irham and Rini Hardiyanti

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Rasayan J. Chem, 14 (4), 2386-2391 (2021)

Keywords: Wound Healing Bioactivity, Curcuma Longa Linn, Phytochemical Screening, FTIR Analysis, Antibacterial Activity.

DOI: http://doi.org/10.31788/RJC.2021.1446345

SPECTRAL INVESTIGATIONS OF TRIVALENT EUROPIUM (Eu3+) IONS DOPED ZnBiNaPSr OXYFLUORIDE GLASSES FOR VISIBLE PHOTONIC DEVICE APPLICATIONS
D. Siva Raju, Megala Rajesh , S. Hima Bindu, J. Suresh Krishna, V. Vinay Krishna, B. Deva Prasad Raju and Ch. Linga Raju

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Rasayan J. Chem, 14 (4), 2392-2405 (2021)

Keywords: Bandgap Energy, Bonding Parameters, J-O Parameters, Decay Profile, Red Emission, Color Purity

DOI: http://doi.org/10.31788/RJC.2021.1446523

ORGANO-Cu (II) CATALYST: AN EFFICIENT SYNTHESIS OF SUBSTITUTED N-HETEROCYCLES VIA DOUBLE CONDENSATION/ TANDEM OXIDATIONCYCLIZATION/ELIMINATION-CYCLIZATION REACTIONS FROM EASILY ACCESSIBLE PRECURSORS
Bittu Saha, Bijeta Mitra, Suvodip Mukherjee, Raju Subba, Dhiraj Brahmin, Biswajit Sinha and Pranab Ghosh

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Rasayan J. Chem, 14 (4), 2406-2412 (2021)

Keywords: Pyrazine, Cyanopyrazine, Quinoxaline, Cu (II) catalyst, 1,2-dicarbonyl, phenacyl bromide.

DOI: http://doi.org/10.31788/RJC.2021.1435959

ELEMENTAL CHARACTERIZATION OF HUMAN BLOOD USING LASER-INDUCED BREAKDOWN SPECTROSCOPY UTILIZING 355 NM Nd: YAG OPERATED AT REDUCED PRESSURE OF He GAS
A.Khumaeni, W.S.Budi , A.Y.Wardaya, R.Hedwig and K. H. Kurniawan

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Rasayan J. Chem, 14 (4), 2413-2319 (2021)

Keywords: Human Blood Serum, TB Patient, LIBS, Laser-induced Plasma Spectroscopy, 355 nm Nd:YAG Laser

DOI: http://doi.org/10.31788/RJC.2021.1445975

ISOLATION, CHARACTERIZATION AND ANTIDIABETIC ACTIVITY OF PHENOLIC COMPOUNDS ISOLATED FROM Macaranga magna TURRILL
Minarti , A.H. Cahyana and A. Darmawan

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Rasayan J. Chem, 14 (4), 2420-2427 (2021)

Keywords: Scopoletin, Apigenin, Gallic Acid, Macaranga magna Turrill, ï¡-glucosidase, Antidiabetic

DOI: http://doi.org/10.31788/RJC.2021.1446290

SYNTHESIS AND STUDIES ON AROMATIC COPOLYESTER WITH ANTICANCER ACTIVITY DERIVED FROM 4,4'- DIHYDROXYBIPHENYL AND 3,5-DIHYDROXYTOLUENE
T. Sivaramakrishnan and G. Elango

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Rasayan J. Chem, 14 (4), 2428 -2435 (2021)

Keywords: 3,5-dihydroxytoluene, 4,4â€™-dihydroxybiphenyl, MTT, Scanning Electron Microscopy, Copolyester, Polycondensation

DOI: http://doi.org/10.31788/RJC.2021.1446544

OXIDATION KINETICS AND MECHANISTIC STUDIES OF THIOACIDS BY IMIDAZOLIUM DICHROMATE
Ruchi Kalla, Devendra Kumar, Anurag Choudhary and Vinita Sharma

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Rasayan J. Chem, 14 (4), 2436 -2441 (2021)

Keywords: Dichromate, Oxidation Kinetics, Thioacid, Solvent Effects

DOI: http://doi.org/10.31788/RJC.2021.1446549

1-(3-ACETYL PHENYL)-4-(4-ARYLIDENE)-2-PHENYL-1HIMIDAZOL-5(4H)-ONES: SYNTHESIS, SPECTROSCOPIC CHARACTERIZATION, ANTIMICROBIAL AND MOLECULAR DOCKING STUDIES
Y. Aparna, D. Sandhya, N. J. P. Subhashini and L. N. Sharada

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Rasayan J. Chem, 14 (4), 2442-2450 (2021)

Keywords: Oxazolone, Glacial Acetic Acid ,Imidazolone, Molecular Docking, Acetyl phenyl.

DOI: http://doi.org/10.31788/RJC.2021.1446520

IMPROVING MECHANICAL AND PHYSICAL PROPERTIES ON THERMOPLASTIC SAGO STARCH BLENDS WITH THE ADDITION OF POLYPROPYLENE
D.A. Tanjung, N. Jamarun, S. Arief, H. Aziz, A.H. Ritonga and B. Isfa

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Rasayan J. Chem, 14 (4), 2451-2458 (2021)

Keywords: Bioplastic, Compatibilizer, Coupling Agent, Polypropylene

DOI: http://doi.org/10.31788/RJC.2021.1446563

COMPARITIVE ANALYSIS OF NOX AND SMOKE EMISSIONS OF BINARY DIESEL/ JME BLENDS DOPED WITH Al2O3 NANOPARTICLES STABILISED BY DEE AS SOLVENT AND TRITON-X100 and BRIJ58 SURFACTANTS
N.S.C. Chaitanya, Y.V.V. SatyanarayanaMurthy, M.R.S. Satyanarayana, Surajith Ghosh and Syed Javed

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Rasayan J. Chem, 14 (4), 2459-2468 (2021)

Keywords: Jatropa, Al2O3Nano particles, DEE, Surfactants, NHRR, CHRR, NOx, Smoke.

DOI: http://doi.org/10.31788/RJC.2021.1446461

A REVIEW ON OLIVE OIL AND Nigella sativa L. BLACK CUMIN SEED OIL: COMPOSITION AND BIOLOGICAL ACTIVITY
Nesrain Farhan, Nadia Salih and Jumat Salimon

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Rasayan J. Chem, 14 (4), 2469-2477 (2021)

Keywords: Olive Oil, Nigella sativa L., Black Cumin Oil, Physicochemical Properties, Biological Effect

DOI: http://doi.org/10.31788/RJC.2021.1446525

KINETIC STUDIES OF THE UNSATURATED ACIDS, OXIDISED BY PYRIDINIUMDICHROMATE: A MECHANISTIC APPROACH
Varsha Bishnoi, Om Prakash and Pradeep K. Sharma

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Rasayan J. Chem, 14 (4), 2478-2485 (2021)

Keywords: Dichromate, kinetic study, mechanistic aspect, USA.

DOI: http://doi.org/10.31788/RJC.2021.1446557

PHENOMENOLOGICAL MODEL OF UREA WATER SOLUTION DOSAGE STRATEGY FOR UREA-SELECTIVE CATALYTIC REDUCTION SYSTEMS
Sadashiva Prabhu S., Nagaraj S. Nayak and Kapilan Natesan

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Rasayan J. Chem, 14 (4), 2486-2498 (2021)

Keywords: Phenomenological Modelling, UWS, SCR, Dosage, Evaporation, Catalyst.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446427

KINETIC STUDIES ON THE SYNTHESIS OF ALKYL DIETHANOLAMIDE FROM Terminalia catappa L. SEED OIL
E.R. Gunawan, D. Suhendra, S.A. Iliyin and L. Kurniawati

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Rasayan J. Chem, 14 (4), 2499-2505 (2021)

Keywords: Kinetic Studies, Alkyldiethanolamide, Terminalia catappa L. Seed Oil, Enzymatic Reaction

DOI: http://dx.doi.org/10.31788/RJC.2021.1445954

EVALUATION OF THE CORROSION INHIBITIVE BEHAVIOUR OF PAWPAW FLUID ON A315 MILD STEEL AND A304 STAINLESS STEEL IN H2SO4 MEDIUM
Ayoola A. Ayodeji ,Fayomi O. Sunday , Akande I. Godwin and Mgbahurike F. Chinemerem

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Rasayan J. Chem, 14 (4), 2506-2515 (2021)

Keywords: Corrosion, Inhibitor, Mild Steel, Pawpaw Fluid, Stainless Steel.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446352

PHYTOCHEMICAL AND PHARMACOLOGICAL EVALUATION OF A MEDICINAL PLANT OF INDONESIAN TENGGER ETHNIC GROUP
A.S. Nugraha, I.D. Anggita, A.A.I. Ratnadewi, T.A. Siswoyo, A.N.W. Pratama , R. Hendra and P.A. Keller

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Rasayan J. Chem, 14 (4), 2516-2520 (2021)

Keywords: Tengger, Sawang, Cordyline fruticose, HPLC, Rapid Isolation, Antioxidant, Antidiabetic

DOI: http://dx.doi.org/10.31788/RJC.2021.1446499

DETERMINATION OF THE EFFICIENCY OF HAFNIUM CARBIDE AND TANTALUM CARBIDE COATINGS DEPOSITED ON EXCHANGE MEMBRANE FUEL CELLS
C. Ruiz-Madera, J. Bautista-Ruiz and W. Aperador

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Rasayan J. Chem, 14 (4), 2521-2528 (2021)

Keywords: Corrosion, Pitting, Leachates, Corrosion Rate, Membrane Fuel Cells

DOI: http://dx.doi.org/10.31788/RJC.2021.1446268

SYNTHESIS OF POLYACETYLENES CONTAINING CINNAMATE AND DERIVED CINNAMATE
E. A. Rahim

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Rasayan J. Chem, 14 (4), 2529-2534 (2021)

Keywords: Polyacetylenes, Cinnamate, Derived Cinnamate, Chiral Catalyst

DOI: http://doi.org/10.31788/RJC.2021.1446471

SYNTHESIS AND APPLICATION FOR THE REDUCTION OF 4- NITROPHENOL USING PALLADIUM NANOPARTICLES DECORATED GRAPHENE OXIDE
K. Saritha Rani, M. Sankararao and S. Mutta Reddy

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Rasayan J. Chem, 14 (4), 2535-2541 (2021)

Keywords: Nitrophenol, Aminophenol, Palladium, Nanoparticles, Graphene Oxide, Nanomaterials.

DOI: http://doi.org/10.31788/RJC.2021.1446497

LOW-COST CELLULOSIC BIOETHANOL PRODUCTION OF OIL PALM EMPTY FRUIT BUNCHES USING HYDROTHERMAL-ALKALINE PRETREATMENTS SYNERGETICLY
M. Nurdin, S.P. Simanungkalit, A.S. Muis, D. Wibowo, Z. Arham, L.O.A. Salim, I. Irwan, M. Maulidiyah and H. Abimanyu

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Rasayan J. Chem, 14 (4), 2542-2548 (2021)

Keywords: Pretreatment, Hydrothermal, Alkaline, OPEFB, Bioethanol

DOI: http://doi.org/10.31788/RJC.2021.1446460

DAIRY WASTE WATER: A POWERHOUSE OF MICROBIAL FACTORIES FOR BIODEGRADATION
Neha Sharma, Vipin Saini, Harshita Bhagwani, Neetu Yadav and Darshan Chahar

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Rasayan J. Chem, 14 (4), 2549-2558 (2021)

Keywords: Bacillus sp., Biochemical Oxygen Demand (BOD), Biodegradation, Chemical Oxygen Demand (BOD), Jaipur Dairy Effluent Treatment Plant (JDETP), Mucor sp.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446482

SAMHONG MUSTARD CULTIVATION BY UTILIZING TILAPIA WASTE IN NUTRIENT FILM TECHNIQUE (NFT) AQUAPONICS SYSTEM BASED ON BIOFLOCS, AND ITS IMPACT ON WATER QUALITY
Deswati Deswati, Olly Norita Tetra, Latisha Putri Isara, Dewi Imelda Roesma and Hilfi Pardi

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Rasayan J. Chem, 14 (4), 2559-2566 (2021)

Keywords: BFT, NFT-AP System, Water Quality

DOI: http://doi.org/10.31788/RJC.2021.1446576

TEMPLATE DIRECTED SYNTHESIS AND CHARACTERIZATION OF MACROCYCLIC COMPLEXES: In-silico DOCKING AND ANTIMICROBIAL STUDIES
J. Kumar, P. Kumar, S. Kumar, R. Langyan and R. Kumar

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Rasayan J. Chem, 14 (4), 2567-2576 (2021)

Keywords: Antibacterial, Antifungal and Antioxidant Activities, Macrocyclic Complexes.

DOI: http://doi.org/10.31788/RJC.2021.1446465

STABILITY INDICATING AND COMPARATIVE ANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF MEMANTINE HCl BY RP-HPLC AND UV SPECTROPHOTOMETRY
Lodoe Choezom, Gurupadayya Bannimath, Vijaya Vemani and Kalyani Reddy

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Rasayan J. Chem, 14 (4), 2577-2585 (2021)

Keywords: Memantine HCl, Alzheimer, HPLC, UV Spectrophotometry, Degradation Studies, Validation

DOI: http://dx.doi.org/10.31788/RJC.2021.1446514

THE REDUCTION OF CHROMIUM AND CHEMICAL OXYGEN DEMAND OF BATIK EFFLUENT BY UNCALCINED AND CALCINED Mg/Al HYDROTALCITE ON VARIOUS pH TREATMENTS
L.I. Ardhayanti, I. Sahroni, I. Darojat and A. Wigati

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Rasayan J. Chem, 14 (4), 2586-2590 (2021)

Keywords: Batik Wastewater, Adsorption, Hydrotalcite, Calcination, COD

DOI: http://dx.doi.org/10.31788/RJC.2021.1445620

COUMARINS IN ORCHIDACEAE: A REVIEW CONNECTING ETHNOMEDICINE AND THERAPEUTIC EXPECTATIONS
S. Sakthi Priyadarsini and P.R. Kumar

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Rasayan J. Chem, 14 (4), 2591-2597 (2021)

Keywords: Ayapin, Dendrobium, Denthyrsin, Esculetin, Scoparone, Scopoletin

DOI: http://dx.doi.org/10.31788/RJC.2021.1446529

TWIGS OF Andrographis paniculata (Burn. F) NEES ATTENUATES CARBON TETRACHLORIDE (CCl₄ - ) INDUCED LIVER DAMAGE IN WISTAR ALBINO RATS
Olubanke O. Ogunlana, Oluseyi E. Ogunlana, Jacob O. Popoola, Babatunde O. Adetuyi, Alaba O. Adeyemi, Tobi S. Adekunbi, Opetoritse L. David, Oluwaseye J. Adeleye, Stephanie A. Udeogu

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Rasayan J. Chem, 14 (4), 2598-2603 (2021)

Keywords: Andrographis paniculata, Carbon Tetrachloride (CCl4), Hepatoprotective, Liver Damage, Ethanol Extract

DOI: http://dx.doi.org/10.31788/RJC.2021.1445987

EVALUATION OF ANTIMICROBIAL ACTIVITIES OF MICROWAVE-IRRADIATION SYNTHESIZED TETRADENTATE (N2O2 DONOR) SCHIFF BASE AND ITS Cu(II) COMPLEXES
K. P. Srivastava, U. S. Yadav and Pragya Singh

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Rasayan J. Chem, 14 (4), 2604-2612 (2021)

Keywords: Microwave Irradiation, Copper Complexes, Distorted Octahedral Geometry, Antimicrobial Activity.

DOI: http://dx.doi.org/10.31788/RJC.2021.1445912

MODELING STRUCTURE OF Glucose-6-phosphate dehydrogenase FROM Leuconostoc mesenteroides STRAIN K7
H. Hidayat, W. Haryadi and T.J. Raharjo

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Rasayan J. Chem, 14 (4), 2613-2621 (2021)

Keywords: Leuconostoc, Glucose 6-phosphate, Dehydrogenase, Swiss-Model, Three-dimensional

DOI: http://dx.doi.org/10.31788/ RJC.2021.1446287

ULTRASONIC VELOCITY STUDIES OF BENZOIC ACID AND SUBSTITUTED BENZOIC ACIDS IN AQUEOUS MIXED SOLVENT SYSTEMS
S. Jagan Raj, V. Subha and S. Bangaru Sudarsan Alwar

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Rasayan J. Chem, 14 (4), 2622-2626 (2021)

Keywords: Benzoic Acid, Ultrasonic Velocity, Solute-solvent Interactions

DOI: http://dx.doi.org/10.31788/RJC.2021.1445767

DESIGN AND IDENTIFY THE NOVEL PRIMAQUINE DERIVATIVES AS A POTENTIAL CANDIDATE DRUG AGAINST SELECTIVE ANTIBIOTIC-RESISTANT ORGANISMS
K. Kavitha and P. Krishnamoorthy

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Rasayan J. Chem, 14 (4), 2627-2638 (2021)

Keywords: Primaquine, Molecular Docking, MtGyrA Receptor, ADMET, Toxicity Analysis.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446516

DEVELOPMENT AND VALIDATION OF A NEW HPLC BIOANALYTICAL INTERNAL STANDARD METHOD FOR THE ANALYSIS OF REMDESIVIRIN HUMAN PLASMA
Donthi Kishore, K. R. S. Prasad, Chaitanya Darapureddy and R. S. CH. Phani

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Rasayan J. Chem, 14 (4), 2639-2644 (2021)

Keywords: RP-HPLC, Internal Standard Method, Remdesivir, Abacavir, Bio-analytical Method and ICH Guidelines.

DOI: http://doi.org/10.31788/RJC.2021.1446373

ULTRASOUND PROMOTED ONE-POT SYNTHESIS OF 2- ARYLIMIDAZO[1,2-A]PYRIMIDINES IN GLYCEROL
Hani Yeslam S. Atif , Devendra S. Wagare, Ahmed Zain Ahmed and Ayesha N. Durrani

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Rasayan J. Chem, 14 (4), 2645-2651 (2021)

Keywords: Imidazo[1,2-a]pyrimidines, One-pot, Glycerol, Ultrasound Irradiation.

DOI: http://doi.org/10.31788/RJC.2021.1446502

SYNTHESIS, CHARACTERIZATION, ANTIMICROBIAL, AND ANTICANCER ACTIVITY OF 2-{[4-(3,5-DIMERCAPTO- [1,2,4]TRIAZOLE-4-YLAZO)-PHENYL]- HYDRAZONOMETHYL}-PHENOL AND ITS METAL COMPLEXES
Medehal Rudrannagari Archana, Kengunte Halappa Shivaprasad and Kondareddy Gopinath Shilpa

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Rasayan J. Chem, 14 (4), 2652-2659 (2021)

Keywords: Azo Compounds, Chelation, Diazotization, Phenyl Hydrazine, Spectro-analytical Techniques, In-vitro Anticancer Activity.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446506

SYNTHESIS AND CHARACTERIZATION OF COPPER OXIDE NANOPARTICLES USING RAMBUTAN PEEL EXTRACT VIA GREENER ROUTE
L. Ragunath, J. Suresh, M. Sankaran, R. Suresh Kumar, A. I. Almansour and N. Arumugam

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Rasayan J. Chem, 14 (4), 2660-2665 (2021)

Keywords: Rambutan Peel, Copper Oxide, Biosynthesis, XRD, SEM, TEM

DOI: http://dx.doi.org/10.31788/RJC.2021.1446512

EXPLORING AND PROVING COMPLEX COMPOUNDS IN BROTOWALI (Tinospora crispa)
W.T. Widodo, D.J.D.H. Santjojo , S. Widyarti and S.B. Sumitro

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Rasayan J. Chem, 14 (4), 2666-2670 (2021)

Keywords: Bioinorganic, Brotowali, Herbs, Medicinal Plants, Transition Metal Complexes

DOI: http://dx.doi.org/10.31788/RJC.2021.1446562

THE EFFECT OF POLY(N-HYDROXYMETHYL ACRYLAMIDE) CHAIN LENGTH IN POLY(N-VINYL PYRROLIDONE)-BLOCK-POLY(N-HYDROXYMETHYL ACRYLAMIDE) ON ITS SENSITIVITY TO pH
N. M. Nizardo and T. P. Tania

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Rasayan J. Chem, 14 (4), 2671-2676 (2021)

Keywords: pH-sensitive polymer, N-hydroxymethyl acrylamide, N-vinyl pyrrolidone, Block Copolymers, Particle Sizes.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446400

SYNTHESIS OF La1-XNdXNiO3NANOSYSTEM FOR MATERIALS AND CATALYTIC CO OXIDATION STUDIES
TeotoneVaz, S.M.Gurav and A.V. Salker

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Rasayan J. Chem, 14 (4), 2677-2685 (2021)

Keywords: Crystalline, Rare-earth Perovskites, Electron Spin Resonance, Catalytic CO Oxidation

DOI: http://dx.doi.org/10.31788/RJC.2021.1446541

PHENOLIC COMPOUNDS FROM THE RHIZOMES OF INDONESIAN Curcuma amada
P. Sugita, M. Amalia, H. Dianhar and D. U. C. Rahayu

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Rasayan J. Chem, 14 (4), 2686-2691 (2021)

Keywords: Curcuma amada, Curcumin, Mango, Ginger, and Naringenin.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446581

SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL STUDIES OF Co(II), Ni(II) AND Cu(II) COMPLEXES CONTAINING TRIPHENYLPHOSPHINE AND SCHIFF BASE LIGAND BASED ON SALICYLALDEHYDE
G. Gokulnath, R. Manikandan, P. Anitha, and C. Umarani

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Rasayan J. Chem, 14 (4), 2692-2697 (2021)

Keywords: Salicylaldehyde, Schiff Base, Metal Complexes, Spectroscopic Investigation, Antibacterial Activity

DOI: http://dx.doi.org/10.31788/RJC.2021.1446480

QUANTITATIVE STRUCTURE-ACTIVITY RELATIONSHIP (QSAR) OF N-BENZOYL-N'-PHENYLTHIOUREA COMPOUND AND DERIVATIVES IN MCF-7 CANCER CELLS
D. Kesuma, H. Santosa, A.L. Nasyanka, and Ruswanto

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Rasayan J. Chem, 14 (4), 2698-2704 (2021)

Keywords: N-benzoyl-N'-phenylthiourea, Synthesis, Cytotoxic Activity, MCF-7 cells, QSAR

DOI: http://dx.doi.org/10.31788/RJC.2021.1446357

EVALUATION OF ANTIBACTERIAL ACTIVITY OF BIOSYNTHESIZED Ag-Au NANOCOMPOSITE USING VITIS VINIFERA FRUIT EXTRACT
Basavaraj Hiremath

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Rasayan J. Chem, 14 (4), 2705-2710 (2021)

Keywords: Biosynthesis, Vitis vinifera, Antibacterial Activity, Bimetallic Ag-Au nanoparticles, Fruit Extracts.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446467

SYNTHESIS AND CHARACTERIZATION OF MACRO-POROUS Gd2O3-ZnO NANOCOMPOSITE SENSOR FOR NO2 GAS DETECTION
M. C. Naik, S. R. Bamane, K. S. Pakhare and S. S. Potdar

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Rasayan J. Chem, 14 (4), 2711-2719 (2021)

Keywords: Combustion Method, XRD, Microstrain Analysis, FE-SEM, TEM, EDS, Gas Sensing, etc.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446519

SYNTHESIS OF TITANIUM (III) SULFATE BY ELECTROCHEMICAL METHOD
G.M. Iztleuov, S.S. Bitursin , A.B. Baeshov, A.E. Bitemirova, K.Z. Kerimbayeva, A.A. Abduova and A.Zh. Dairabaeva

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Rasayan J. Chem, 14 (4), 2720-2727 (2021)

Keywords: Titanium (III)sulfate, Electrolysis, Electrochemical Dissolution, Current Output

DOI: http://dx.doi.org/10.31788/RJC.2021.1446532

REGIO-AND STEREOSELECTIVITY OF 1,3-DIPOLAR CYCLOADDITION REACTION OF CINNARIZINE DRUG WITH CHIRAL NITRONES, AND THEIR ANTIMICROBIAL ACTIVITY
Arwa Al Adhreai, Mohammed Alsaeedy, Mazahar Farooqui and Usama Al-Timari

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Rasayan J. Chem, 14 (4), 2728-2738 (2021)

Keywords: Nitrones, 1,3-Dipolar Cycloaddition Reaction, Isoxazolidines, Cinnarizine.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446570

HIGHLY EFFECTIVE BIOSORPTIVE REMOVAL OF CHROMIUM (III) FROM SOIL SAMPLE IN THE VICINITY OF RICE MILL INDUSTRY, CENTRAL INDIA
P. Verma, S. K. Chatterjee, S. Ghosh and D. Sinha

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Rasayan J. Chem, 14 (4), 2739-2748 (2021)

Keywords: Soil, Heavy Metal, Sample, Atomic Absorption Spectrophotometer, FTIR, SEM, EDX.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446335

PRODUCTION OF BIODEGRADABLE PLASTICS FROM SWEET POTATO SKINS WITH THE ADDITION OF CHITOSAN
Ismet, Chairul Amni, Purwantiningsih , Deden Saprudin and Ellysa

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Rasayan J. Chem, 14 (4), 2749-2753 (2021)

Keywords: Plastics, Packaging, Biodegradable, Sweet Potato.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446363

QUANTIFYING TWO GENOTOXIC IMPURITIES IN DARUNAVIR UTILISING GC/MS SINGLE QUADRUPOLE ANALYZER USING ELECTRON IONISATION APPLICATION
Mohinish Sahai and Nayakanti Devanna

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Rasayan J. Chem, 14 (4), 2754-2760 (2021)

Keywords: Impurities, Genotoxic, Darunavir, Carbon tetrachloride, 1,2-Dichloroethane, Gas Chromatography, Mass Spectrometer.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446444

STRATEGIC APPROACHES TO THE SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL EVALUATION OF SUBSTITUTED PIPERAZINYL-IMIDAZOLE CONJUGATES
Jyoti Gupta, Afreen Inam and Amir Azam

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Rasayan J. Chem, 14 (4), 2761-2766 (2021)

Keywords: Piperazine, Nitroimidazole, Cell Viability Assay, MTT Assay, Cytotoxicity

DOI: http://dx.doi.org/10.31788/RJC.2021.1445943

PREPARATION OF MAGNETIC/SILICA/QUARTERNARYCHITOSAN BY SOL-GEL METHOD AND ITS STABILITY IN VARIOUS pH MEDIUM
R.B. Istiningrum, S.J. Santosa, and N. Nuryono

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Rasayan J. Chem, 14 (4), 2767-2775 (2021)

Keywords: Magnetite, Silica, Chitosan, Trimethyl Chitosan, Sol-gel, Coating

DOI: http://dx.doi.org/10.31788/RJC.2021.1446355

Ti(III), VO(IV), Cr(III), Fe(III), MoO2(VI) AND WO2(VI) COMPLEXES OF NEW TRIDENTATE SCHIFF BASE LIGAND: SYNTHESIS, SPECTRAL CHARACTERIZATION, THERMAL AND BIOLOGICAL STUDIES
K. A. Thakare and A. S. Aswar

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Rasayan J. Chem, 14 (4), 2776-2789 (2021)

Keywords: Pyrazine-2-carbohydrazone, Spectral Data, XRDs, SEM, TGA, Biological Activity.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446493

REACTIVE EXTRACTION SOXHLET-INTENSIFIED THE DIRECT BIODIESEL PRODUCTION OF WET SPENT COFFEE GROUND BIOMASS USING HETEROGENEOUS CATALYST
J. Br. Tarigan, M. Ginting, E. H. Sinaga and E. K. Sitepu

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Rasayan J. Chem, 14 (4), 2790-2797 (2021)

Keywords: Soxhlet, Direct Transesterification, Spent Coffee Ground, Biodiesel.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446521

PHARMACOGNOSTIC, PHYTOCHEMICAL AND PHARMACOLOGICAL EVALUATION OF Ailanthus excelsa Roxb. AND Oroxylum indicum (L) Benth. Ex. Kurz. (SYONAK) USED IN INDIAN SYSTEM OF MEDICINE
A. Pasrija, H. Popli, R. Mitra, J.L.N. Sastry, C. Singla and A. Dhiman

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Rasayan J. Chem, 14 (4), 2798-2804 (2021)

Keywords: Dashmoola, Oroxylum indicum, Ailanthus excelsa

DOI: http://dx.doi.org/10.31788/RJC.2022.1446559

EFFICIENT BIOLOGICAL ACTIVITY OF ACRIDINE SYNTHESISED BY MICROWAVE IRRADIATION WITH AN EFFICIENT NANOCATALYST
B. Premalatha and P. Punitha

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Rasayan J. Chem, 14 (4), 2805-2809 (2021)

Keywords: MPTH, Microwave, NMR, XRD, SEM, Anticancer.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446568

CRYSTAL DEVELOPMENT, THERMAL AND CRYSTALLINE PERFECTION OF POTASSIUM MAGNESIUM COBALT SULFATE HEXAHYDRATE MIXED CRYSTALS
P. Punitha and S. Senthilkumar

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Rasayan J. Chem, 14 (4), 2810-2819 (2021)

Keywords: Tutton Salt, Thermal Analysis, HRXRD, X-ray Diffraction.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446571

RECENT DEVELOPMENTS IN IONIC LIQUIDS AND NANOMATERIALS
C. Angrish, R. Chhabra and M. Genwa

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Rasayan J. Chem, 14 (4), 2820-2826 (2021)

Keywords: Ionic Liquids, Nanoparticles, Synthesis of Nanoparticles, Eco-friendly, Sustainable.

DOI: http://dx.doi.org/10.31788/RJC.2022.1445075

SYNTHESIS AND EVALUATION OF ANTIOXIDANT ACTIVITY OF SOME NEW 1,3,4-OXADIAZOLE DERIVATIVES
F. Abed, M.R. Ghezzar, B. Absar and H. Rayah

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Rasayan J. Chem, 14 (4), 2827-2833 (2021)

Keywords: 1,3,4-Oxadiazole, 2,2'-Thiodiacetic Acid, Antioxidant Activity, DPPH

DOI: http://dx.doi.org/10.31788/RJC.2022.1446572

MONO-THIOCYANATO MERCURY (II) CHLORIDE: A NOVEL REAGENT FOR SPECTROPHOTOMETRIC DETERMINATION OF CHLORIDE IN BEERS
Shivaji R. Labhade and Kailas R. Labhade

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Rasayan J. Chem, 14 (4), 2834-2844 (2021)

Keywords: Mono-thiocyanato-mercury(II) Chloride, Mercuric Thiocyanate, Beers, Spectrophotometric Assay, Beerâ€™s Law Linearity

DOI: http://dx.doi.org/10.31788/RJC.2021.1446539

ISOLATION AND CHARACTERIZATION OF A NEW COMPOUND (6-C-β-D-GLUCOPYRANOSYL RETUSIN) FROM THE BARK OF Pterocarpus Marsupium
Anjum Usmani, Manoj Kumar and Jalaj Tripathi Devgan

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Rasayan J. Chem, 14 (4), 2845-2850 (2021)

Keywords: Acetone, Acetonitrile, 6-C-Î²-D-glucopyranosyl retusin, Flavone and Isoflavone

DOI: http://dx.doi.org/10.31788/RJC.2021.1445505

THE EFFECTS OF INHIBITION OF FERN EXTRACTS ON THE ALKALINE AND ACID CORROSION OF ALUMINIUM ALLOY
J. D. Udonne, V. E. Efeovbokhan, F. Medaiyese, O. P. Akinyemi and T.E. Oladimeji

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Rasayan J. Chem, 14 (4), 2851-2861 (2021)

Keywords: Fern Extracts, Alkaline Medium, Langmuir Isotherms, Adsorption Characteristics, Molecular Interaction, Inhibition Efficiency.

DOI: http://dx.doi.org/10.31788/RJC.2021.1446278