has role S-methylcysteine (2R)-2-amino-3-(methylsulfanyl)propanoic acid (R)-2-amino-3-(methylthio)propanoic acid 135.035 135.18500 3-(Methylthio)-L-alanine A cysteine derivative that is L-cysteine in which the hydrogen attached to the sulfur is replaced by a methyl group. C4H9NO2S CAS:1187-84-4 CHEBI:22056 CHEBI:45655 CHEBI:45658 CHEBI:90363 CSC[C@H](N)C(O)=O DrugBank:DB02216 HMDB:HMDB0002108 IDIDJDIHTAOVLG-VKHMYHEASA-N InChI=1S/C4H9NO2S/c1-8-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1 L-Methylcysteine MetaCyc:S-METHYL-L-CYSTEINE PDBeChem:SMC PMID:15161248 PMID:19367645 PMID:21110385 PMID:23417484 PMID:25650289 PMID:26887651 PMID:26928722 PMID:508804 PMID:7451605 PMID:993852 Reaxys:1721675 S-METHYLCYSTEINE S-methyl-L-cysteine S-methyl-L-cysteine chebi_ontology S-alkyl-L-cysteine plant metabolite