CAS Registry Number
CAS 52-90-4 — L-Cysteine
L-Cysteine is a sulfur-containing amino acid used in biochemical research, pharmaceuticals, and food supplements for its role in protein synthesis and antioxidant activity. In food manufacturing it serves as a flour treatment agent and dough conditioner for bread, and it is also used as a flavoring ingredient. It is available as a white to off-white crystalline powder. CAS: 52-90-4, Molecular Formula: HSCH2CH(NH2)CO2H, Molecular Weight: 121.16 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies L-Cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Also known as: (2R)-2-amino-3-sulfanylpropanoic acid · (R)-2-Amino-3-mercaptopropanoic acid · beta-Mercaptoalanine · Cystein · cysteine · Cysteinum · Half-cystine · L-Cys · L-Cystein · Thioserine · L-Cysteine (TF) · L-Cysteine - reference standard
Molekula products for CAS 52-90-4
L-Cysteine
SKU 15386031
L-Cysteine (TF)
SKU 90030874
L-Cysteine - reference standard
SKU 90034805
Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.