1(2H)-ISOQUINOLINONE 1(2H)-Isoquinolone 1-Hydroxyisoquinoline 1-Isoquinolinol 491-30-5 AI3-62131 EINECS 207-732-1 Isocarbostyril Isocarbostyril (VAN) (8CI) Isoquinolin-1-one NSC 27273