2,5-雙(4-氨基苯基)四氫-3a,6a 二甲基環丁烷[1,2-c:3,4-c′]二吡咯-1,3,4,6(2H,5H)-四氫吡咯烷酮 2,5-Bis(4-aminophenyl)tetrahydro-3a,6a-dimethylcyclobuta[1,2-c:3,4-c′]dipyrrole-1,3,4,6(2H,5H)-tetrone HPLC: ≥ 99%