1(3H)-Isobenzofuranone, 3-phenyl- (9CI) 3-Phenylphthalide 5-17-10-00452 (Beilstein Handbook Reference) 5398-11-8 AI3-18169 BRN 0159678 EINECS 226-426-9 NSC 4572 Phthalide, 3-phenyl-