1,2-Ethanediamine, N,N'-bis(9-acridinyl)- 4-21-00-04184 (Beilstein Handbook Reference) 58903-56-3 ACRIDINE, 9,9'-ETHYLENEDIIMINOBIS- BRN 0360267 N,N'-Di(9-acridinyl)-1,2-diaminoethane