L-Cystine, Cell Culture Reagent

Description

CAS: 56-89-3 | C6H12N2O4S2 | 240.292 g/mol

L-cysteine acts as a major source of sulfur in cell culture. Cysteine has been used in pulse-chase experiments to study protein expression from an inducible promoter. L-Cysteine is used to supplement cell culture media.

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
L-cysteine acts as a major source of sulfur in cell culture. Cysteine has been used in pulse-chase experiments to study protein expression from an inducible promoter. L-Cysteine is used to supplement cell culture media.

Solubility
It is soluble in water and HCL.

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

Specifications

Chemical Identifiers

• CAS: 56-89-3
• Molecular Formula: C6H12N2O4S2
• Molecular Weight (g/mol): 240.292
• MDL Number: MFCD00064228
• InChI Key: LEVWYRKDKASIDU-IMJSIDKUSA-N
• Synonym: l-cystine, cystine, l-dicysteine, l-cystin, cystine acid, cysteine disulfide, oxidized l-cysteine, beta,beta'-dithiodialanine, h-cys-oh 2, l-cysteine disulfide
• PubChem CID: 67678
• ChEBI: CHEBI:16283
• IUPAC Name: (2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid
• SMILES: C(C(C(=O)O)N)SSCC(C(=O)O)N

• Melting Point: >240°C (decomposition)
• Color: White
• Beilstein: 1728094
• Merck Index: 14,2782
• Solubility Information: It is soluble in water and HCL.
• Density: 1.68
• Quantity: 10 g
• Formula Weight: 240.3
• Optical Rotation: −219° (c=1 in 1N HCl)
• Grade: Cell Culture Reagent
• Physical Form: Powder
• Chemical Name or Material: L-Cystine

Safety and Handling

EINECSNumber	200-296-3
RTECSNumber	HA2690000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only