5,12-Dinitro-2,9-dioctylanthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetraone compound with 5,13-Dinitro-2,9-dioctylanthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetraone 5,12-二硝基-2,9-二辛基蒽并[2,1,9-def:6,5,10-d’e’f’]二异喹啉-1,3,8,10(2H,9H)-四酮与5,13-二硝基-2,9-二辛基蒽并[2,1,9-def:6,5,10-d’e’f’]二异喹啉-1,3,8,10(2H,9H)-四酮混合物