4-ACRIDINECARBOXAMIDE, 9,9'-TETRAMETHYLENEDIOXYBIS(4-METHYLSULFONAMIDO-o-PHENYLE 4-Acridinecarboxamide, 9,9'-tetramethylenedioxybis(4-methylsulfonamido-o-phenyleneimino)bis-, dihydrochloride, dihydrate 66724-96-7