Dopachrome
5,6-Dioxo-2,3,5,6-tetrahydro-1H-indole-2-carboxylic acid
 8393  C9H7NO4  193.156
 InChI=1S/C9H7NO4/c11-7-2-4-1-6(9(13)14)10-5(4)3-8(7)12/h2-3,6,10H,1H2,(H,13,14)
 VJNCICVKUHKIIV-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 OC(=O)C1NC2=CC(=O)C(=O)C=C2C1