Description

(S)-Rabeprazole Sodium Salt CAS NO 171440-19-0 is the sodium salt of the (S)-enantiomer of rabeprazole, a high-purity active pharmaceutical ingredient (API) and key chiral intermediate. This compound is critical for the development and production of enantiomerically pure proton pump inhibitors (PPIs) with enhanced pharmacological profiles. It is primarily required by pharmaceutical R&D laboratories and manufacturers specializing in advanced gastrointestinal therapeutics and chiral drug synthesis.

Application

• Active Pharmaceutical Ingredient (API) for enantiomerically pure proton pump inhibitor formulations.
• Chiral reference standard and building block in pharmaceutical research and development.
• Key intermediate in the synthesis of advanced, single-isomer gastrointestinal drugs.
• Material for preclinical and clinical studies investigating (S)-rabeprazole efficacy.
• Starting material for the preparation of other high-value chiral pharmaceutical compounds.
• Critical component in analytical method development and validation for regulatory filings.

Basic Information

Product Name	(S)-Rabeprazole Sodium Salt
CAS No.	171440-19-0
Molecular Formula	C18H20N3NaO3S
Molecular Weight	381.42 g/mol
Synonyms	(S)-Rabeprazole Sodium; Dexrabeprazole Sodium; Sodium (S)-2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazolide; (S)-Sodium Rabeprazole; Dexlansoprazole Related Compound; Pariprazole Impurity; (S)-Enantiomer of Rabeprazole Sodium; Sodium (S)-Rabeprazole
EINECS	Contact for details

Quality Control

Our (S)-Rabeprazole Sodium Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity and related substance analysis by HPLC, to ensure compliance with stringent pharmaceutical-grade standards. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your regulatory and R&D requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥98.5%
Chiral Purity (Enantiomeric Excess)	≥99.0%
Related Substances (HPLC)	Total impurities ≤1.0% Any single impurity ≤0.5%
Water Content (KF)	≤2.0%
Residue on Ignition	≤0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.