The molecule is a pyrrole-2,5-dicarboxylic acid having 7-chloroindol-3-yl groups at the 3- and 4-positions. It is a pyrroledicarboxylic acid and a chloroindole. It is a conjugate acid of a dichlorochromopyrrolate.
3,4-bis(7-chloro-1H-indol-3-yl)-1H-pyrrole-2,5-dicarboxylic acid