Impurity-1

CAS No: 117977-20-5 153259-31-5 HCl
Chemical Name:
2-(chloromethyl)-4-(3-methoxypropoxy)-3-methylpyridine
Molecular Formula:
C11H16ClNO2

 Sulfide N-Oxide

CAS No: 924663-40-1
Chemical Name:
2-((1H-benzo[d]imidazol-2-ylthio)methyl)-4-(3-methoxypropoxy)-3-methylpyridine 1-oxide
Molecular Formula:
C18H21N3O3S

USP Sulfone N-Oxide /EP-I

CAS No: 924663-37-6
Chemical Name:
2-((1H-benzo[d]imidazol-2-ylsulfonyl)methyl)-4-(3-methoxypropoxy)-3-methylpyridine 1-oxide
Molecular Formula:
C18H21N3O5S

USP Methoxy analog/EP-E

CAS No: 102804-77-3
Chemical Name:
2-((4-methoxy-3-methylpyridin-2-yl)methylsulfinyl)-1H-benzo[d]imidazole
Molecular Formula:
C15H15N3O2S

USP Methoxy sulfide/EP-G

CAS No: 102804-82-0
Chemical Name:
2-((4-methoxy-3-methylpyridin-2-yl)methylthio)-1H-benzo[d]imidazole
Molecular Formula:
C15H15N3OS

4-Chloro Analog Sulfide

CAS No: 103312-62-5
Chemical Name:
2-((4-chloro-3-methylpyridin-2-yl)methylthio)-1H-benzo[d]imidazole
Molecular Formula:
C14H12ClN3S

4-Chloro Analog Sulfone

CAS No: 1159977-27-1
Chemical Name:
2-((4-chloro-3-methylpyridin-2-yl)methylsulfonyl)-1H-benzo[d]imidazole
Molecular Formula:
C14H12ClN3O2S

USP RCC/EP-F

CAS No: 583-39-1
Chemical Name:
1H-benzo[d]imidazole-2-thiol
Molecular Formula:
C7H6N2S

USP RCD/EP-A

CAS No: 117976-47-3
Chemical Name:
2-((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methylsulfonyl)-1H-benzo[d]imidazole
Molecular Formula:
C18H21N3O4S

USP RCE/EP-B

CAS No: 117977-21-6
Chemical Name:
2-((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methylthio)-1H-benzo[d]imidazole
Molecular Formula:
C18H21N3O2S

USP RCF/EP-H

CAS No: 168167-42-8
Chemical Name:
2-((4-chloro-3-methylpyridin-2-yl)methylsulfinyl)-1H-benzo[d]imidazole
Molecular Formula:
C14H12ClN3OS

Reference standared

CAS No: 117976-89-3
Chemical Name:
(RS)-2-([4-(3-methoxypropoxy)-3-methylpyridin-2-yl]methylsulfinyl)-1H-benzo[d] imidazole
Molecular Formula:
C18H21N3O3S

USP RCA/EP-C

CAS No: 2437254-50-5 1163685-30-0 (free base)
Chemical Name:
sodium 1-(1H-benzo[d]imidazol-2-yl)-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylate
Molecular Formula:
C14H10N3NaO3

USP RCB/EP-D

CAS No: 924663-38-7
Chemical Name:
2-((1H-benzo[d]imidazol-2-ylsulfinyl)methyl)-4-(3-methoxypropoxy)-3-methylpyridine 1-oxide
Molecular Formula:
C18H21N3O4S