C8630

DL-Cystine

• Synonym(s): (±)-3,3′-Dithiobis(2-aminopropionicacid)
• Linear Formula: HOOCCH(NH₂)CH₂SSCH₂CH(NH₂)COOH
• CAS Number: 923-32-0
• Molecular Weight: 240.30
• Beilstein: 1728095
• EC Number: 213-094-5
• MDL number: MFCD00084652
• UNSPSC Code: 12352200
• PubChem Substance ID: 24893084
• NACRES: NA.26

Properties

• Assay: ≥98% (TLC)
• form: powder
• color: white to off-white
• mp: 227 °C (dec.) (lit.)
• solubility: 1 M HCl: soluble
• SMILES string: NC(CSSCC(N)C(O)=O)C(O)=O
• InChI: 1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)
• InChI key: LEVWYRKDKASIDU-UHFFFAOYSA-N

Description

Biochem/physiol Actions

DL-Cystine is a racemic mixture of the proteinogenic amino acids L-cystine and the non-proteinogenic D-cystine. DL-cystine is used in the preparation of sulfur-containing dimeric and monomeric surfactants.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves