Description

Carbocisteine Lactam is a key pharmaceutical intermediate and organic building block, primarily recognized for its role in the synthesis of mucolytic agents. Its importance lies in providing a high-purity, reactive precursor for the efficient production of active pharmaceutical ingredients (APIs) targeting respiratory conditions. This compound is essential for manufacturers in the pharmaceutical, fine chemical, and research sectors who require reliable, specification-grade raw materials for advanced synthesis.

Application

• Pharmaceutical Intermediate: Primary use in the synthesis of Carbocisteine (S-Carboxymethylcysteine), a widely used mucolytic drug.
• API Manufacturing: Serves as a critical building block in the production chain for cough and cold medications.
• Fine Chemical Synthesis: Used in organic synthesis for introducing the carboxymethylthio moiety into target molecules.
• Biochemical Research: Employed in R&D for studying mucolytic activity and developing new therapeutic agents.
• Reference Standard: Utilized as an analytical standard in quality control laboratories for HPLC and spectroscopic methods.

Basic Information

Product Name	Carbocisteine Lactam
CAS No.	62305-89-9
Molecular Formula	C5H7NO3S
Molecular Weight	161.18 g/mol
Synonyms	(R)-3-[(Carboxymethyl)thio]-2-pyrrolidinone; S-Carboxymethylcysteine Lactam; L-Carbocisteine Lactam; 2-Oxo-3-[(carboxymethyl)thio]pyrrolidine; Carbocisteine Related Compound A; Mucolytic Intermediate; ACC Lactam; Rhinathiol Lactam
EINECS	Contact for details

Quality Control

Our Carbocisteine Lactam is produced and tested under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification, assay, and impurity profiling, to ensure it meets the high standards required for pharmaceutical intermediate use. A Certificate of Analysis (COA) detailing purity, related substances, and physical characteristics is provided with every shipment. We can support compliance with ICH Q7, GMP, and other relevant regulatory guidelines for advanced intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. For long-term storage, consider using desiccants or storing under an inert atmosphere to minimize oxidation risk.

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)	≥ 98.5%
Related Substances (HPLC)	Total impurities ≤ 1.5%
Single Maximum Unknown Impurity	≤ 0.5%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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