Omeprazole
IMPURITY A (EP)
-
Code
OME_1
-
CAS
37052-78-1
-
MW
180.23
-
IUPAC
5-methoxy-1H-benzimidazole-2-thiol
-
MF
C8H8N2OS
-
Stock
2-3 weeks
IMPURITY B (EP)
-
Code
OME_2
-
CAS
110374-16-8
-
MW
315.39
-
IUPAC
2-[(RS)-[(3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole
-
MF
C16H17N3O2S
-
Stock
1-2 weeks
IMPURITY C (EP)
-
Code
OME_3
-
CAS
73590-85-9
-
MW
329.42
-
IUPAC
5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2- yl)methyl]sulfanyl]-1H-benzimidazole
-
MF
C17H19N3O2S
-
Stock
2-3 weeks
IMPURITY D (EP)
-
Code
OME_4
-
CAS
88546-55-8
-
MW
361.42
-
IUPAC
5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2- yl)methyl]sulfonyl]-1H-benzimidazole
-
MF
C17H19N3O4S
-
Stock
2-3 weeks
IMPURITY E (EP)
-
Code
OME_5
-
CAS
176219-04-8
-
MW
361.42
-
IUPAC
4-methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2- yl)sulfinyl]methyl]-3,5-dimethylpyridine 1-oxide
-
MF
C16H17N3O4S
-
Stock
2-3 weeks
ESOMEPRAZOLE MAGNESIUM (USP)
-
Code
OME_9
-
CAS
217087-09-7
-
MW
767.17
-
IUPAC
1H-Benzimidazole, 5-methoxy-2-[(S)-[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-, magnesium salt (2:1), trihydrate
-
MF
C34H42MgN6O9S2
-
Stock
2-3 weeks
RELATED COMPOUND I (USP)
-
Code
OME_10
-
CAS
158812-85-2
-
MW
377.41
-
IUPAC
4-Methoxy-2-[[(5-methoxy-1H-benzimidazol-2-yl)sulfonyl]methyl]-3,5-dimethylpyridine 1-oxide
-
MF
C17H19N3O5S
-
Stock
2-3 weeks
MIXTURE OF IMPURITY F,G (USP)
-
Code
OME_11
-
CAS
N/A
-
MW
311.36
-
IUPAC
Mixture of 1,3-dimethyl-8-methoxy-12-thioxopyrido[1',2':3,4]imidazo[1,2-alpha]benzimidazol-2(12H)-one and 1,3-dimethyl-9-methoxy-12-thioxopyrido[1',2':3,4]imidazo[1,2-alpha]benzimidazol-2(12H)-one (Mixture of Regioisomers)
-
MF
C16H13N3O2S
-
Stock
1-2 months