1H-Naphth[2,3-f]isoindole-1,3,5,10(2H)-tetrone,4,11-diamino-2-(3-ethoxypropyl)-,mixt. with 4,11-diamino-2-(3-methoxypropyl)-1Hnaphth[ 2,3-f]isoindole-1,3,5,10(2H)-tetrone
1H-Naphth[2,3-f]isoindole-1,3,5,10(2H)-tetrone,4,11-diamino-2-(3-ethoxypropyl)-,mixt. with 4,11-diamino-2-(3-methoxypropyl)-1Hnaphth[ 2,3-f]isoindole-1,3,5,10(2H)-tetrone