2103-64-2 52413-17-9 (DELETED) AIDS-081066 AIDS081066 C.I. 45445 C.I. Mordant Violet 25 Gallein NSC158916 (QUINOID, FREE ACID FORM) NSC56445 NSC622478 NSC8668 Pyrogallolphthalein: 12,13,14,15-Tetrahydroxyspiro[3-hydroisobenzofuran-3,9'-xanthene]-1-one Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',4',5',6'-tetrahydroxy-