API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Olmesartan

EP Impurity A

4-(2-hydroxypropan-2-yl)-2-propyl-1-({4-[2-(2H-1,2,3,4-tetrazol-5-yl)phenyl]phenyl}methyl)-1H-imidazole-5-carboxylic acid Olmesartan-EP-Impurity-A
Olmesartan

Olmesartan Trityl Impurity

(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl4-(2-hydroxypropan-2-yl)-2-propyl-1-[[2'-(1-triphenylmethyl-1H-tetrazole-5-yl)biphenyl-4-yl]methyl]-1H-imidazole-5-carboxylate Olmesartan-Trityl-Impurity
Olmesartan

EP Impurity C

(5-methyl-2-oxo-2H-1,3-dioxol-4-yl)methyl 4-(2-propen-2-yl)-2-propyl-1-({4-[2-(2H-1,2,3,4-tetrazol-5-yl)phenyl]phenyl}methyl)-1H-imidazole-5-carboxylate Olmesartan-EP-Impurity-C
Olmesartan

Olmesartan Impurity

4-[1-Hydroxy-1-methylethyl]-2-propyl-1-[[2'-1H-tetrazole-5-yl]1,1'-biphenyl-4-yl-methyl]- 1H-Imidazole-5-carboxlylic acid Olmesartan-Olmesartan-Impurity
OLMESARTAN DIMER

OLMESARTAN DIMER

4-(1-Hydroxy-1-methylethyl)-2-propyl-1-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-5-carboxylic acid 1-[5-carboxy-2-propyl-1-[[2'-(2H-tetrazol-5-yl) [1,1'-biphenyl]-4-yl]methyl]-1H-imidazol-4-yl]-1-methylethyl ester OLMESARTAN DIMER