Description

(S)-Fesoterodine Hcl is the single enantiomer of the active pharmaceutical ingredient fesoterodine fumarate, specifically targeting the S-configuration. This high-purity intermediate is critical for the development and manufacturing of enantiomerically pure antimuscarinic drugs used to treat overactive bladder (OAB) syndrome. It is essential for pharmaceutical R&D laboratories and API manufacturers focused on producing advanced therapeutics with optimized efficacy and reduced side-effect profiles. The compound's defined stereochemistry ensures precise biological activity in final drug formulations.

Application

• Pharmaceutical Active Ingredient (API) Intermediate: Key chiral building block in the synthesis of (S)-Fesoterodine fumarate.
• Enantioselective Drug Development: Used in research to study the pharmacokinetics and pharmacodynamics of the pure S-enantiomer.
• Reference Standard: Serves as a high-purity analytical standard for quality control and regulatory submissions.
• Process Chemistry & Scale-Up: Employed in optimizing synthetic routes for the commercial production of fesoterodine-based medications.
• Academic & Contract Research: Utilized in universities and CROs for pharmacological studies and new formulation development.

Basic Information

Product Name	(S)-Fesoterodine Hcl
CAS No.	1294517-14-8
Molecular Formula	C26H38ClNO5
Molecular Weight	480.04 g/mol
Synonyms	(S)-Fesoterodine Hydrochloride; (2R,3R)-2,3-Dihydroxybutanedioate; (3R)-3-(Diisopropylamino)-1-phenyl-1-(2-thienyl)propan-1-ol hydrochloride; Fesoterodine Impurity; (S)-Fesoterodine HCl; UNII-7V314KQF8C; (S)-Form of Fesoterodine HCl
EINECS	Contact for details

Quality Control

Our (S)-Fesoterodine Hcl is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets stringent pharmaceutical-grade specifications. We provide full traceability and support regulatory filings with detailed documentation. Certificates of Analysis (COA) are available upon request.

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 anhydrous conditions. For long-term storage, consider desiccants or an inert atmosphere.

Specification

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

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