ABC01159XN

Rabeprazole USP Related Compound B

Rabeprazole USP Related Compound B is a benzimidazole-based impurity arising from oxidative modification of the parent drug's sulfinyl moiety, resulting in a sulfoxide functional group. Its structure incorporates a 4-(3-methylpyridin-2-yl)-1H-benzimidazole core linked to a methoxyphenylsulfoxide substituent. This compound serves as a critical HPLC reference standard for quantifying process-related impurities in rabeprazole active pharmaceutical ingredient batches.

On Request
Molecular Formula C18H21N3O4S
Molecular Weight 375.4000
CAS Number 924663-38-7 ✓ Verified
PubChem CID 16095899 ↗
Purity N/A
Product Type API Impurity
Parent Drug Rabeprazole
Lead Time On Request
IUPAC Name 2-[[4-(3-methoxypropoxy)-3-methyl-1-oxidopyridin-1-ium-2-yl]methylsulfinyl]-1H-benzimidazole
Official Reference Standards
Std Catalog # Quantity Price
USP 1598031 ↗ 15 mg USD 948.00

📝 Synonyms

Rabeprazole N-Oxide 924663-38-7 Rabeprazole Impurity B UNII-17Q1V00385 17Q1V00385 EC 642-214-2 RABEPRAZOLE N-OXIDE [USP IMPURITY] RABEPRAZOLE SODIUM IMPURITY D [EP IMPURITY] 1H-BENZIMIDAZOLE, 2-(((4-(3-METHOXYPROPOXY)-3-METHYL-1-OXIDO-2-PYRIDINYL)METHYL)SULFINYL)- 2-(((RS)-(1H-BENZIMIDAZOL-2-YL)SULFINYL)METHYL)-4-(3-METHOXYPROPOXY)-3-METHYLPYRIDINE 1-OXIDE

🔬 Chemical Identifiers

CC1=C(C=C[N+](=C1CS(=O)C2=NC3=CC=CC=C3N2)[O-])OCCCOC
InChI=1S/C18H21N3O4S/c1-13-16(21(22)9-8-17(13)25-11-5-10-24-2)12-26(23)18-19-14-6-3-4-7-15(14)20-18/h3-4,6-9H,5,10-12H2,1-2H3,(H,19,20)
ZOEQFVVMBAVTRU-UHFFFAOYSA-N

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