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Proton-pump inhibitorsIn stockImpurity reference standardPh. Eur.

Rabeprazole Impurity A (Rabeprazole Sulphone)

JR-PP1003-01

Variant ofRabeprazole sodium EP CRS

Rabeprazole sulfone (2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)sulfonyl)-1H-benzimidazole; EP Impurity A / USP Related Compound B); S-oxidation impurity of rabeprazole.

Structure & identifiers

2D structure — select to enlarge

Catalogue code
JR-PP1003-01
Category
Proton-pump inhibitors
CAS number
117976-47-3
Grade
Impurity reference standard
Pharmacopoeia
Ph. Eur.
Molecular formula
C18H21N3O3S
Molecular weight
359.45 g/mol
Pack sizes
25 mg · 50 mg · 100 mg · 500 mg
Record updated
12 Nov 2026

Chemical name

Rabeprazole Impurity A (Rabeprazole Sulphone)

SMILES

COCCCc1ccnc(CS(=O)(=O)c2nc3ccccc3[nH]2)c1C

Compound identity, CAS number, formula and structure are referenced from public chemical databases. Contact us to confirm availability, pack sizes and documentation for your order.

Rabeprazole Impurity A (Rabeprazole Sulphone)

25 mg · ×1