Description

(S)-Oxybutynin Hydrochloride CAS NO 230949-16-3 is the single enantiomer, active pharmaceutical ingredient (API) form of the antimuscarinic agent oxybutynin. This high-purity chiral compound is critical for developing advanced pharmaceutical formulations with improved therapeutic profiles and reduced side effects. It is primarily required by pharmaceutical R&D laboratories and manufacturers for the production of enantiomerically pure medications targeting overactive bladder (OAB) and other urological disorders.

Application

• Pharmaceutical Active Ingredient (API): Core component in the manufacture of enantiomerically pure (S)-oxybutynin hydrochloride tablets, capsules, and other dosage forms.
• Neurological & Urological Research: Key reference standard and building block in preclinical and clinical research for antimuscarinic therapies.
• Drug Development & Optimization: Used in the development of new drug delivery systems, such as transdermal patches or controlled-release formulations, to enhance efficacy and patient compliance.
• Analytical & Quality Control: Serves as a primary standard for HPLC, LC-MS, and other analytical methods to ensure the quality and enantiomeric purity of commercial drug products.
• Generic Pharmaceutical Manufacturing: Essential for companies producing generic versions of single-enantiomer oxybutynin medications.
• Comparative Bioavailability Studies: Used in studies comparing the pharmacokinetics of the pure enantiomer versus the racemic mixture.

Basic Information

Product Name	(S)-Oxybutynin Hydrochloride
CAS No.	230949-16-3
Molecular Formula	C22H31NO3•HCl
Molecular Weight	393.95 g/mol
Synonyms	(S)-Oxybutynin HCl; (-)-Oxybutynin Hydrochloride; (S)-4-(Diethylamino)-2-butynyl α-phenylcyclohexaneglycolate Hydrochloride; (S)-α-Cyclohexyl-α-hydroxybenzenacetic acid 4-(diethylamino)-2-butynyl ester hydrochloride; Dexoxybutynin Hydrochloride; (S)-Oxybutynin Chloride; Single Enantiomer Oxybutynin HCl
EINECS	Contact for details

Quality Control

Our (S)-Oxybutynin Hydrochloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for identity, purity, and enantiomeric excess, aligning with ICH guidelines. A Certificate of Analysis (COA) detailing results for assay, related substances, residual solvents, chiral purity, and other critical parameters is provided with every shipment to guarantee supply reliability and batch-to-batch consistency for your pharmaceutical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference standard
Identification (HPLC)	Retention time corresponds to reference
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Enantiomeric Purity (Chiral HPLC)	≥ 99.0%
Related Substances (HPLC)	Total impurities ≤ 1.0% Any single impurity ≤ 0.5%
Water (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Complies with ICH Q3C

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