L-Cystine, 99%, Thermo Scientific Chemicals

Description

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

General description

• L-Cystine is a derivative of the amino acid, cysteine
• Cystine is not considered one of the twenty common amino acids, but it has a role as a metabolite in some species
• May act as an antioxidant in form and reduce aging, inflammation, and tissue damage

Applications

• Used as an additive to cell culture media
• Intended for biochemistry applications such as HPLC

Chemical Identifiers

• CAS: 56-89-3
• Molecular Weight (g/mol): 240.292
• InChI Key: LEVWYRKDKASIDU-IMJSIDKUSA-N
• PubChem CID: 67678
• IUPAC Name: (2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid

• Molecular Formula: C6H12N2O4S2
• MDL Number: MFCD00064228
• 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
• ChEBI: CHEBI:16283
• SMILES: C(C(C(=O)O)N)SSCC(C(=O)O)N

Specifications

• Ammonium: 200ppm max.
• Color: White to Beige
• Chlorine (Cl): 200ppm max.
• Infrared Spectrum: Authentic
• Assay Percent Range: 99%
• Molecular Formula: C6H12N2O4S2
• MDL Number: MFCD00064228
• Specific Rotation: −209° to −224° (20°C, 589nm) (c=2, 1 M HCl) on dried substance
• Merck Index: 15, 2779
• 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
• SMILES: C(C(C(=O)O)N)SSCC(C(=O)O)N
• Molecular Weight (g/mol): 240.292
• ChEBI: CHEBI:16283
• Percent Purity: ≥98.5% (Acid)
• Chemical Name or Material: L-Cystine

• CAS: 56-89-3
• Chloride: 200ppm max.
• Heavy Metals (as Pb): 10ppm max.
• Iron (Fe): 10ppm max.
• Loss on Drying: 0.5 % max. (105°C, 3 hrs)
• Linear Formula: [-SCH₂CH(NH₂)CO₂H]₂
• Beilstein: 04, 507
• Sulfate: 300ppm max.
• Sulfated Ash: 0.1 % max.
• InChI Key: LEVWYRKDKASIDU-IMJSIDKUSA-N
• IUPAC Name: (2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid
• PubChem CID: 67678
• Formula Weight: 240.3
• Physical Form: Fused Solid, Crystals or Chunks

Safety and Handling

GHS H Statement:
Causes skin irritation.
Causes serious eye irritation.
Harmful if swallowed.
May cause respiratory irritation.

GHS P Statement:
Avoid breathing dust/fume/gas/mist/vapors/spray.
IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
IF ON SKIN: Wash with plenty of soap and water.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.

Product Identifier

• L-Cystine

RUO – Research Use Only