N-formyl-L-kynurenine
['C1=CC=C(C(=C1)C(=O)C[C@H](C(=O)O)N)NC=O', 'InChI=1S/C11H12N2O4/c12-8(11(16)17)5-10(15)7-3-1-2-4-9(7)13-6-14/h1-4', 'C1=CC=C(C(=C1)C(=O)CC(C(=O)O)N)NC=O', 'N-formyl-L-kynurenine']