1(3H)-Isobenzofuranane, 3-(phenylmethylene)- 1(3H)-Isobenzofuranone, 3-(phenylmethylene)- 1(3H)-Isobenzofuranone, 3-(phenylmethylene)- (9CI) 3-(Phenylmethylene)-1(3H)-isobenzofuranone 3-Benzalphthalide 3-Benzylidenephthalide 5-17-10-00577 (Beilstein Handbook Reference) 575-61-1 AI3-17979 BRN 0083797 Benzalphthalide Benzylidenephthalide EINECS 209-388-8 Escalol 547 NSC 2824 Phthalide, 3-benzylidene-