CAS Registry Number

CAS 1187-84-4 — S-Methyl-L-cysteine

S-Methyl-L-cysteine is a sulfur-containing amino acid derivative used primarily in research, pharmaceutical development, and as a precursor in the synthesis of other bioactive compounds. It plays a role in studying metabolic pathways, antioxidant research, and as a building block in peptide synthesis. This chemical has the CAS number 1187-84-4 and carries no signal word under CLP/GHS classification, indicating low acute hazard. It is typically provided as a white to off-white crystalline powder with high purity for research applications. Molekula supplies S-Methyl-L-cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.