1,4-Diamino-N-ethyl-2,3-anthraquinonedicarboximide 1H-Naphth(2,3-f)isoindole-1,3,5,10(2H)-tetrone, 4,11-diamino-2-ethyl- 4,11-Diamino-2-ethyl-1H-naphth(2,3-f)isoindole-1,3,5,10(2H)-tetrone 65121-70-2 EINECS 265-458-8