3-ethyl-4-methyl-pyrrole-2,5-dione-5-oxime

(2Z)-4-乙基-2-[(4-乙基-3,5-二甲基-1H-吡咯-2-基)亚甲基]-3,5-二甲基吡咯

醋酸

5'-bromo-3',4-diethyl-3,4',5-trimethyl-2,2'-dipyrromethenium bromide/perbromide