ion 3-mercaptopyruvate 119.11900 -1 2-oxo-3-sulfanylpropanoate 2-oxo-3-sulfanylpropanoate C3H3O3S OJOLFAIGOXZBCI-UHFFFAOYSA-M chebi_ontology InChI=1S/C3H4O3S/c4-2(1-7)3(5)6/h7H,1H2,(H,5,6)/p-1 CHEBI:57678 The conjugate base of 3-mercaptopyruvic acid. [O-]C(=O)C(=O)CS Beilstein:3933339 118.98084