ethyl 3-ethyl-4-methyl-1H-pyrrole-2-carboxylate

5-[(5-carboxy-3-ethyl-4-methyl-1H-pyrrol-2-yl)methyl]-4-ethyl-3-methyl-1H-pyrrole-2-carboxylic acid

5,5-亚甲基双(4-乙基-3-甲基-2-吡咯羧酸二乙酯)

α,α-(5,5'-bis(ethoxycarbonyl)-4,4'-diethyl-3,3'-dimethyl-2,2'-dipyrryl)toluene

(3,3'-diethyl-4,5,4',5'-tetramethyl-2,2'-dipyrryl)methene hydrobromide