5,5'-[(3,4-diethylpyrrol-2,5-diyl)bis(methylen)]bis[4-(3-hydroxypropyl)-3-methylpyrrol-2-carbaldehyd]
5,5'-[(3,4-diethylpyrrole-2,5-diyl)bis(methylene)]bis[4-(3-hydroxypropyl)-3-methylpyrrole-2-carbaldehyde]