1.0 2026-09-22 16:21:29 UTC 2026-09-22 16:21:29 UTC FDB118513 Violacein 3-[2-hydroxy-5-(5-hydroxy-1H-indol-3-yl)-1H-pyrrol-3-yl]indol-2-one C20H13N3O3 343.342 343.095691291 3-[2-hydroxy-5-(5-hydroxy-1H-indol-3-yl)-1H-pyrrol-3-yl]-2H-indol-2-one 3-[2-hydroxy-5-(5-hydroxy-1H-indol-3-yl)-1H-pyrrol-3-yl]indol-2-one OC1=C(C=C(N1)C1=CNC2=C1C=C(O)C=C2)C1=C2C=CC=CC2=NC1=O InChI=1S/C20H13N3O3/c24-10-5-6-15-12(7-10)14(9-21-15)17-8-13(19(25)23-17)18-11-3-1-2-4-16(11)22-20(18)26/h1-9,21,23-25H SHLJIZCPRXXHHZ-UHFFFAOYSA-N belongs to the class of organic compounds known as hydroxyindoles. These are organic compounds containing an indole moiety that carries a hydroxyl group. Hydroxyindoles Organic compounds Organoheterocyclic compounds Indoles and derivatives Hydroxyindoles Aromatic heteropolycyclic compounds 1-hydroxy-2-unsubstituted benzenoids Azacyclic compounds Carbonyl compounds Carboxylic acids and derivatives Heteroaromatic compounds Hydrocarbon derivatives Indoles N-acylimines Organic oxides Organopnictogen compounds Substituted pyrroles 1-hydroxy-2-unsubstituted benzenoid Aromatic heteropolycyclic compound Azacycle Benzenoid Carbonyl group Carboxylic acid derivative Heteroaromatic compound Hydrocarbon derivative Hydroxyindole Indole N-acylimine Organic nitrogen compound Organic oxide Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Pyrrole Substituted pyrrole logp 3.81 ALOGPS logs -3.96 ALOGPS solubility 3.81e-02 g/l ALOGPS logp 2.67 ChemAxon pka_strongest_acidic 7.67 ChemAxon pka_strongest_basic 0.055 ChemAxon iupac 3-[2-hydroxy-5-(5-hydroxy-1H-indol-3-yl)-1H-pyrrol-3-yl]-2H-indol-2-one ChemAxon average_mass 343.342 ChemAxon mono_mass 343.095691291 ChemAxon smiles OC1=C(C=C(N1)C1=CNC2=C1C=C(O)C=C2)C1=C2C=CC=CC2=NC1=O ChemAxon formula C20H13N3O3 ChemAxon inchi InChI=1S/C20H13N3O3/c24-10-5-6-15-12(7-10)14(9-21-15)17-8-13(19(25)23-17)18-11-3-1-2-4-16(11)22-20(18)26/h1-9,21,23-25H ChemAxon inchikey SHLJIZCPRXXHHZ-UHFFFAOYSA-N ChemAxon polar_surface_area 101.47 ChemAxon refractivity 99.46 ChemAxon polarizability 35.99 ChemAxon rotatable_bond_count 2 ChemAxon acceptor_count 4 ChemAxon donor_count 4 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 115425 Specdb::CMs 129780 Specdb::CMs 998670 Specdb::CMs 998671 Specdb::CMs 998672 Specdb::CMs 998673 Specdb::CMs 998674 Specdb::CMs 998675 Specdb::CMs 998676 Specdb::CMs 998677 Specdb::CMs 998678 Specdb::CMs 998679 Specdb::CMs 998680 Specdb::CMs 998681 Specdb::CMs 998682 Specdb::CMs 998683 Specdb::CMs 998684 Specdb::CMs 998685 Specdb::CMs 998686 Specdb::CMs 998687 Specdb::CMs 998688 Specdb::CMs 998689