(3-ethyl-5-bromomethyl-4-methyl-pyrrol-2-yl)-(3-ethyl-5-bromomethyl-4-methyl-pyrrol-2-ylidene)-methane, hydrobromide

4-ethyl-2-[(4-ethyl-3-methyl-1H-pyrrol-2-yl)-phenylmethyl]-3-methyl-1H-pyrrole

(5,5'-bis(methoxymethyl)-4,4'-dimethyl-3,3'-diethyl-2,2'-dipyrryl)methene hydrobromide

1,8-bis[(4,4'-diethyl-3,3'-dimethyl-2,2'-dipyrryl)methyl]anthracene

5,5'-methylenebis(3-ethyl-4-methyl-1H-pyrrole-2-carboxylic acid)