SMILES: CCOC(=O)C1=CC=CC=C1N=NC2=C(C(=C(N2)/C=C\\3/C(=C(C(=O)N3)C)C=C)C)CCC(=O)O
Description: The molecule is a synthetic dipyrrin derived from rings A and D of bilirubin IXalpha in which C-9 carries a 2-[2-(ethoxycarbonyl)phenyl]diazenyl substituent. It is an azo compound and a member of dipyrrins.