Description

Prenisteine CAS NO 5287-46-7 is a synthetic organic compound belonging to the class of mucolytic agents, valued for its ability to modify the rheological properties of mucus. This makes it a critical active pharmaceutical ingredient (API) for developing respiratory therapeutics. It is primarily sought by pharmaceutical manufacturers and research institutions focused on creating advanced treatments for chronic obstructive pulmonary disease (COPD), bronchitis, and other conditions involving viscous secretions.

Application

• Pharmaceutical API: Core active ingredient in prescription mucolytic and expectorant medications.
• Respiratory Therapeutics: Formulation of tablets, syrups, and inhalable solutions for chronic bronchitis and COPD management.
• Clinical Research: Used as a reference standard and investigational compound in pharmacological studies on airway clearance.
• Veterinary Medicine: Component in veterinary pharmaceuticals for treating respiratory conditions in animals.
• Biochemical Research: Tool compound for studying the structure and function of mucins and glycoproteins.

Basic Information

Product Name	Prenisteine
CAS No.	5287-46-7
Molecular Formula	C9H14N2O4S
Molecular Weight	246.28 g/mol
Synonyms	Prenisteine; S-Carboxymethylcysteine S-oxide ethyl ester; Ethyl 2-[(carboxymethyl)sulfinyl]acetate; L-Prenisteine; (R)-Prenisteine; Flogovit; Mucolytic Agent 5287-46-7
EINECS	226-108-5

Quality Control

Our Prenisteine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and assay, identification by spectroscopic methods, and stringent control of residual solvents and related substances. We provide full traceability and Certificates of Analysis (COA) compliant with current industry and regulatory standards for pharmaceutical ingredients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials.

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)	98.0% - 102.0% (on anhydrous basis)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%
Water Content (KF)	≤ 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.