SMILES: C1=CC=C2N=C\\3C(=C(C(=O)/C3=C/C4=CC=C(C=C4)O)C5=C6C(=NC7=CC=CC=C67)/C(=C\\C8=CC=C(C=C8)O)/C5=O)C2=C1
Description: The molecule is a ring assembly obtained by 1,1'-coupling of two molecules of (3E)-3-[(4-hydroxyphenyl)methylidene]cyclopenta[b]indol-2(3H)-one. A UV-screening molecule produced by many strains of cyanobacteria. It has a role as a biological pigment, a bacterial metabolite and an ultraviolet filter. It is an organic heterotricyclic compound, a polyphenol, an enone, an organonitrogen heterocyclic compound and a ring assembly.