sulfur-containing amino acid thiol amino dicarboxylic acid C4-dicarboxylic acid 3-thio-L-aspartic acid 165.010 165.16800 3-mercapto-L-aspartic acid 3-sulfanyl-L-aspartic acid A sulfur-containing amino acid that is L-aspartic acid substituted at position 3 by a thio (sulfanyl) group. C4H7NO4S CHEBI:74653 InChI=1S/C4H7NO4S/c5-1(3(6)7)2(10)4(8)9/h1-2,10H,5H2,(H,6,7)(H,8,9)/t1-,2?/m0/s1 MWUQQPGZOPQTIX-PIKHSQJKSA-N N[C@@H](C(S)C(O)=O)C(O)=O chebi_ontology non-proteinogenic L-alpha-amino acid L-aspartic acid derivative