(1-oxoisoquinolin-2(1H)-yl)acetic acid 2(1H)-isoquinolineacetic acid, 1-oxo- InChI=1/C11H9NO3/c13-10(14)7-12-6-5-8-3-1-2-4-9(8)11(12)15/h1-6H,7H2,(H,13,14