Description

(S)-Oxybutynin CAS NO 119618-22-3 is the single enantiomer of the antimuscarinic agent oxybutynin, offering a targeted pharmacological profile. This high-purity chiral intermediate is critical for the development of enantiomerically pure active pharmaceutical ingredients (APIs) with potentially improved efficacy and reduced side-effect profiles. It is primarily required by pharmaceutical R&D laboratories and manufacturers specializing in urological and neurological therapeutics.

Application

• Key chiral building block for the synthesis of enantiopure (S)-oxybutynin hydrochloride API.
• Critical intermediate in pharmaceutical research for overactive bladder (OAB) and urinary incontinence treatments.
• Used in preclinical and clinical studies to investigate the specific pharmacological effects of the (S)-enantiomer.
• Reference standard for analytical method development and quality control in API manufacturing.
• Starting material for the development of novel antimuscarinic drugs with enhanced receptor selectivity.
• Intermediate in the production of specialized drug delivery systems, such as transdermal patches.

Basic Information

Product Name	(S)-Oxybutynin
CAS No.	119618-22-3
Molecular Formula	C22H31NO3
Molecular Weight	357.49 g/mol
Synonyms	(S)-Oxybutynin; (S)-4-(Diethylamino)-2-butynyl α-phenylcyclohexaneglycolate; (-)-Oxybutynin; (S)-(-)-Oxybutynin; (3S)-3-Hydroxy-α-phenylcyclohexaneacetic acid 4-(diethylamino)-2-butynyl ester; Dexoxybutynin; Levoxybutynin; (S)-Oxybutynin Base
EINECS	Contact for details

Quality Control

Our (S)-Oxybutynin is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the stringent requirements for pharmaceutical intermediate applications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline 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%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Loss on Drying	≤0.5%

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