Description

Fenspiride is a pharmaceutical active ingredient with the CAS registry number 5053-06-5, recognized for its role as a bronchodilator and anti-inflammatory agent. This compound is critical for the development of respiratory therapeutics, offering a mechanism of action that targets airway inflammation and smooth muscle constriction. It is primarily required by pharmaceutical manufacturers and research institutions engaged in the formulation of treatments for chronic obstructive pulmonary disease (COPD), asthma, and related respiratory conditions.

Application

• Active Pharmaceutical Ingredient (API) in anti-asthmatic and bronchodilator medications.
• Key intermediate in the synthesis of advanced respiratory therapeutics.
• Reference standard for analytical method development and quality control in pharmaceutical laboratories.
• Research chemical for pharmacological studies targeting phosphodiesterase inhibition and anti-inflammatory pathways.
• Component in preclinical and clinical research for chronic obstructive pulmonary disease (COPD) treatments.
• Starting material for the preparation of novel drug derivatives and prodrugs in medicinal chemistry.

Basic Information

Product Name	Fenspiride
CAS No.	5053-06-5
Molecular Formula	C15H20N2O2
Molecular Weight	260.33 g/mol
Synonyms	8-(2-Phenylethyl)-1-oxa-3,8-diazaspiro[4.5]decan-2-one; Fenspiride Hydrochloride (salt form); Respitrol; Pneumorel; SL 7402; Fenspiridum; 1-Oxa-3,8-diazaspiro[4.5]decan-2-one, 8-(2-phenylethyl)-
EINECS	225-745-4

Quality Control

Our Fenspiride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets high-grade pharmaceutical standards. Certificates of Analysis (COA) detailing specifications and test results are provided with every shipment and 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). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	98.0% - 102.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single unknown impurity	≤ 0.5%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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