DL-Cystine, Thermo Scientific Chemicals

Description

DL-cystine is used in the preparation of sulfur-containing dimeric and monomeric surfactants.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
DL-cystine is used in the preparation of sulfur-containing dimeric and monomeric surfactants.

Solubility
Soluble in dilute acid and alkali solution, highly soluble in water, not soluble in alcohol.

Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Keep away from strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 923-32-0
• Molecular Formula: C6H12N2O4S2
• Molecular Weight (g/mol): 240.292
• MDL Number: MFCD00084652
• InChI Key: LEVWYRKDKASIDU-UHFFFAOYSA-N
• Synonym: dl-cystine, cystine, d-cystine, 3,3'-disulfanediylbis 2-aminopropanoic acid, dicysteine, cystin, h-dl-cys-oh 2, .beta.,.beta.'-dithiodialanine, cystine, dl, cystine, l
• PubChem CID: 595
• ChEBI: CHEBI:17376
• IUPAC Name: 2-amino-3-[(2-amino-2-carboxyethyl)disulfanyl]propanoic acid
• SMILES: C(C(C(=O)O)N)SSCC(C(=O)O)N

• Melting Point: 227°C (decomposition)
• Color: White
• Beilstein: 1728095
• Merck Index: 14,2782
• Solubility Information: Soluble in dilute acid and alkali solution,highly soluble in water,not soluble in alcohol.
• Quantity: 5 g
• Formula Weight: 240.3
• Physical Form: Powder
• Chemical Name or Material: DL-Cystine

Safety and Handling

Hazard Category	H302-H315-H319-H335
Precautionary Statement	P261-P264b-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P362-P501c
EINECSNumber	213-094-5
TSCA	No
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only