1H-Indole-2,3-dione, 5-methoxy- (9CI) 39755-95-8 5-21-13-00116 (Beilstein Handbook Reference) 5-Methoxy-1H-indole-2,3-dione 5-Methoxy-indole-2,3-dione 5-Methoxyisatin BRN 0139520 INDOLE-2,3-DIONE, 5-METHOXY- NSC 88052