is conjugate acid of is conjugate base of cysteine cysteinate(1-) -1 120.012 120.15128 2-amino-3-mercaptopropanoate 2-amino-3-sulfanylpropanoate A sulfur-containing amino-acid anion that is the conjugate base of cysteine, obtained by deprotonation of the carboxy group. Beilstein:4128885 C3H6NO2S CHEBI:32456 Gmelin:363235 InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/p-1 NC(CS)C([O-])=O Reaxys:4128885 XUJNEKJLAYXESH-UHFFFAOYSA-M chebi_ontology cys(-) cysteinate(1-) cysteine monoanion hydrogen cysteinate cysteinate(2-) alpha-amino-acid anion cysteine zwitterion sulfur-containing amino-acid anion