Description

Meso-Cystine is a specific stereoisomer of the sulfur-containing amino acid cystine, distinguished by its unique meso configuration. This compound is a critical building block and intermediate in advanced biochemical research and pharmaceutical development. It is essential for researchers and manufacturers in the pharmaceutical, nutraceutical, and life science industries requiring high-purity, stereochemically defined amino acids for synthesis, formulation, and analytical standard applications.

Application

• Pharmaceutical Intermediate: Used in the synthesis of specialized peptides, prodrugs, and active pharmaceutical ingredients (APIs) where the specific stereochemistry of cystine is crucial.
• Biochemical Research: Serves as a key reagent and standard in studies of protein structure, disulfide bond formation, and redox biochemistry.
• Cell Culture Media Supplement: Employed as a component in specialized cell culture formulations to support the growth of demanding cell lines.
• Nutraceutical Development: Investigated for use in advanced dietary supplements and clinical nutrition products targeting specific metabolic pathways.
• Analytical Standard: Provides a high-purity reference material for HPLC, LC-MS, and other analytical methods in quality control and research laboratories.

Basic Information

Product Name	Meso-Cystine
CAS No.	6020-39-9
Molecular Formula	C6H12N2O4S2
Molecular Weight	240.30 g/mol
Synonyms	meso-Cystine; (R,S)-Cystine; (R,S)-3,3'-Dithiobis(2-aminopropanoic acid); DL-Cystine; (±)-Cystine; Cystine (meso form); 2,2'-Diamino-3,3'-dithiodipropionic acid (meso); NSC 13261
EINECS	227-901-0

Quality Control

Our Meso-Cystine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chiral purity verification, to ensure it meets the high standards required for research and pharmaceutical applications. Certificates of Analysis (COA) detailing purity, identity, and specific tests are provided with every shipment.

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 should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% meso form
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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