EP-I

CAS No: 158812-85-2
Chemical Name:
4-Methoxy-2-[[(5-methoxy-1H-benzimidazol-2-yl)sulfonyl]methyl]-3,5-dimethylpyridine 1-oxide
Molecular Formula:
C17H19N3O5S

N-Oxide

CAS No: 142885-92-5
Chemical Name:
4-methoxy-2-((5-methoxy-1H-benzo[d]imidazol-2-ylthio)methyl)-3,5-dimethylpyridine 1-oxide
Molecular Formula:
C17H19N3O3S

Impurity-1

CAS No: 2080-75-3
Chemical Name:
5-Methoxy-2-benzimidazolinone
Molecular Formula:
C8H8N2O2

Impurity-2

CAS No: NA
Chemical Name:
2-(chloromethyl)-4-methoxy-3,5-dimethylpyridine
Molecular Formula:
C9H12ClNO

EP-G

CAS No: 125656-83-9
Chemical Name:
9-Methoxy-1,3-dimethyl-12-thioxopyrido[1',2':3,4]imidazo[1,2-a]benzimidazol-2(12H)-one
Molecular Formula:
C16H13N3O2S

EP-F &EP-G mixture

CAS No: NA
Chemical Name:
8-Methoxy-1,3-dimethyl-12-thioxobenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2(12H)-one compound with 9-methoxy-1,3-dimethyl-12-thioxobenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2(12H)-one (1:1)
Molecular Formula:
C16H13N3O2S

EP-H

CAS No: 863029-89-4
Chemical Name:
2-[(RS)-[(4-Chloro-3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole
Molecular Formula:
C16H16ClN3O2S

Desmethoxy Omeprazole/ EP-B

CAS No: 110374-16-8
Chemical Name:
5-Methoxy-2-[[(3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-1H-benzimidazole
Molecular Formula:
C16H17N3O2S

EP-C

CAS No: 73590-85-9
Chemical Name:
5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfanyl]-1H-benzimidazole
Molecular Formula:
C17H19N3O2S

EP-D

CAS No: 88546-55-8
Chemical Name:
5-methoxy-2-((4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfonyl)-1H-benzo[d]imidazole
Molecular Formula:
C17H19N3O4S

EP-E

CAS No: 176219-04-8
Chemical Name:
4-Methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2-yl)sulfinyl]methyl]-3,5-dimethylpyridine 1-oxide
Molecular Formula:
C17H19N3O4S

EP-F

CAS No: 125656-82-8
Chemical Name:
8-Methoxy-1,3-dimethyl-12-thioxopyrido[1',2':3,4]imidazo[1,2-a]benzimidazol-2(12H)-one
Molecular Formula:
C16H13N3O2S

Reference standared

CAS No: 95510-70-6
Chemical Name:
Sodium 5-methoxy-2-[(RS)-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl] sulphinyl]-1H-benzimidazole
Molecular Formula:
C17H19N3NaO3S

EP-A

CAS No: 37052-78-1
Chemical Name:
5-Methoxy-1H-benzimidazole-2-thiol
Molecular Formula:
C8H8N2OS