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L-Carbocisteine

L-Carbocisteine | CAS 638-23-3 API Manufacturer & Supplier in China

High-purity L-Carbocisteine (CAS 638-23-3) manufacturer in China. Offering BP/EP/JP grade purity, stable industrial supply, and fast global shipping. Request Price, COA, and MSDS from Conscientia Industrial.

Product Overview

L-Carbocisteine (CAS 638-23-3), also known as S-Carboxymethyl-L-Cysteine, is a functionalized amino acid derivative produced through the precise alkylation of L-cysteine. Within the Pharmaceutical APIs and biochemical research sectors, it is highly valued as a critical mucolytic agent used in laboratory research and the development of high-stability chemical formulations. As a leading manufacturer of L-Carbocisteine (CAS 638-23-3) based in China, Conscientia Industrial utilizes advanced fermentation-sourced raw materials and multi-stage recrystallization protocols to ensure the highest structural integrity and white crystalline profile. Our product maintains a strict purity profile to meet global technical requirements for batch-to-batch consistency and specialized industrial synthesis.


Technical Specifications

  • Product Name: L-Carbocisteine

  • CAS Number: 638-23-3

  • Category: Pharmaceutical APIs

  • Quality Standard: BP / EP / JP / KP

  • Purity (HPLC): ≥98.0%

  • Molecular Formula: C5H9NO4S

  • Molecular Weight: 179.19

  • Appearance: White crystalline powder

  • Loss on Drying: ≤1.0%

  • Residue on Ignition: ≤0.3%

  • Heavy Metals: ≤10ppm

  • Brand: Conscientia Industrial

  • Country of Origin: China

  • Availability: In Stock

  • Pricing: Competitive price based on order quantity

  • Currency: USD

  • Molecular Structure:


L-Carbocisteine CAS 638-23-3 Molecular Structure - Conscientia Industrial China


Why Partner with Conscientia Industrial

  • Technical Quality Control: Our manufacturing process follows rigorous analytical protocols to ensure high-grade batch-to-batch consistency for L-Carbocisteine CAS 638-23-3.

  • Advanced Analytical Verification: Every batch is validated through HPLC and titration methods to confirm chemical identity and minimize related substances.

  • Full Technical Documentation: We provide comprehensive support, including Certificate of Analysis (COA), MSDS, and Method of Analysis (MOA) for technical evaluation.

  • Scalable Production Capacity: Our China facility is equipped to support projects ranging from small-scale laboratory trials to large-scale bulk industrial supply.

  • Direct Source Advantage: As a primary manufacturer, we provide L-Carbocisteine CAS 638-23-3 with efficient lead times and direct factory technical support.


Packaging & Storage

  • Standard Packaging: 25kg/fiber drum with dual PE protection for chemical integrity.

  • Storage Conditions: Store in a tightly closed container in a cool, dry environment. Protected from light and moisture.

  • Safety Handling: This material is a technical-grade chemical intended for industrial production and laboratory research use only.


Our logistics team ensures secure distribution of L-Carbocisteine CAS 638-23-3 via global courier, air freight, and sea freight options.


Request a Quote & COA for L-Carbocisteine CAS 638-23-3 Today.

Expert Review
Rating: 5/5
★★★★★ Daniel Hughes (QA Director)
The API demonstrates high purity and consistent batch-to-batch quality. It performs well and meets required specifications for our pharmaceutical manufacturing.

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