Meloxicam Impurity AMeloxicam IMP 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic Acid Ethyl Ester 1,1-Dioxide

Meloxicam Impurity BMeloxicam IMP 2-Amino-5-methylthiazole

Meloxicam Secondary StandardMeloxicam API 4-Hydroxy-2-methyl-N-(5-methyl-2-thiazolyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

4-Aminobenzenesulfonic AcidMesalazine IMP Aniline-4-sulfonic acid

4-Formylamino AntipyrineMetamizole IMP N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)formamide

4-Methylaminophenazone HydrochlorideMetamizole IMP 1,2-Dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one monohydrochloride

N-Methyl DesloratadineLoratadine IMP 8-Chloro-6,11-dihydro-11-(1-methyl-4-piperidinylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine

Loratadine Impurity 1Loratadine IMP 4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one

4-Cyano LoratadineLoratadine IMP 4-(8-Chloro-4-cyano-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11 -ylidene)-1-Piperidinecarboxylic Acid Ethyl Ester

IsolosartanLosartan IMP 2-Butyl-5-chloro-1-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-4-methanol