S-carboxymethyl-L-cysteine (2R)-2-amino-3-[(carboxymethyl)sulfanyl]propanoic acid (L)-2-Amino-3-(carboxymethylthio)propionic acid (R)-S-(carboxymethyl)cysteine 179.025 179.19530 An L-cysteine thioether that is L-cysteine in which the hydrogen of the thiol group has been replaced by a carboxymethyl group. Beilstein:1725012 C5H9NO4S CAS:638-23-3 CHEBI:12745 CHEBI:16163 CHEBI:22040 CHEBI:41438 CHEBI:8954 Drug_Central:4160 GBFLZEXEOZUWRN-VKHMYHEASA-N Gmelin:1043764 HMDB:HMDB0029415 InChI=1S/C5H9NO4S/c6-3(5(9)10)1-11-2-4(7)8/h3H,1-2,6H2,(H,7,8)(H,9,10)/t3-/m0/s1 KEGG:C03727 KEGG:D00175 L-3-((carboxymethyl)thio)alanine L-Carbocisteine MetaCyc:CPD-44 Mucodyne N[C@@H](CSCC(O)=O)C(O)=O PDBeChem:CCS PMID:19126298 PMID:22497630 PMID:23728642 Reaxys:1725012 S-(carboxymethyl)-(R)-cysteine S-(carboxymethyl)-L-cysteine S-Carboxymethyl-L-cysteine S-carboxymethylcysteine Wikipedia:Carbocisteine carbocisteina carbocisteine carbocisteinum carbocysteine chebi_ontology L-cysteine thioether non-proteinogenic L-alpha-amino acid