CAS 548-54-9 — 0 EU Cosmetic Records

Chemical identity and properties

PubChem 2D chemical structure for CAS 548-54-9

CAS 548-54-9PubChem CID 11053

Violacein

Violacein is a member of the class of hydroxyindoles resulting from the formal oxidative coupling between the 3-position of 1,3-dihydro-2H-indol-2-one and the 3-position of 1,3-dihydro-2H-pyrrol-2-one, which is substituted at the 5 position by a 5-hydroxy-1H-indol-3-yl group, where the newly-formed double bond has E configuration. It is a purple chromobacterial pigment that has antibacterial, antifungal, antiprotozoan, and anticancer properties. It has a role as an antibacterial agent, an antineoplastic agent, an antifungal agent, an apoptosis inducer and a bacterial metabolite. It is a member of pyrroles, a member of oxindoles, an olefinic compound and a member of hydroxyindoles. It is functionally related to a proviolacein. — ChEBI

IUPAC name: 3-[2-hydroxy-5-(5-hydroxy-1H-indol-3-yl)-1H-pyrrol-3-yl]indol-2-one

Molecular formula: C20H13N3O3
Molecular weight: 343.3 g/mol
Exact mass: 343.09569129 Da
XLogP3: 2.7
Topological polar surface area: 101.0 Å²
Hydrogen-bond donors: 4
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

QJH0DSQ3SGUNII-QJH0DSQ3SGBRN 00499232-INDOLINONE, 3-(2-(5-HYDROXYINDOL-3-YL)-5-OXO-2-PYRROLIN-4-YLIDENE)-3-(2-(5-Hydroxyindol-3-yl)-5-oxo-2-pyrrolin-4-ylidene)-2-indolinone4-26-00-00715 (Beilstein Handbook Reference)(E)-3-(5-(5-Hydroxy-1H-indol-3-yl)-2-oxo-1,2-dihydro-3H-pyrrol-3-ylidene)indolin-2-one(3E)-3-[5-(5-hydroxy-1H-indol-3-yl)-2-oxo-1,2-dihydro-3H-pyrrol-3-ylidene]-1,3-dihydro-2H-indol-2-one

16 more reported names

Anorosin(3Z)-violaceinVIOLACEIN [MI]CHEBI:131914GLXC-23822EX-A13905Oxindole, 3-(2-(5-hydroxyindol-3-yl)-5-oxo-2-pyrrolin-4-ylidene)-Oxindole, 3-(2-(5-hydroxyindol-3-yl)-5-oxo-2-pyrrolin-4-ylidene)- (6CI)DA-59016HY-119809CS-0078057(3E)-3-[5-(5-hydroxy-1H-indol-3-yl)-2-oxo-1H-pyrrol-3-ylidene]indolin-2-one(Z)-3-(5-(5-Hydroxy-1H-indol-3-yl)-2-oxo-1,2-dihydro-3H-pyrrol-3-ylidene)indolin-2-one3-(5-(5-Hydroxy-1H-indol-3-yl)-2-oxo-1,2-dihydro-3H-pyrrol-3-ylidene)indolin-2-one(3E)-3-(1,2-dihydro-5-(5-hydroxy-1H-indol-3-yl)-2-oxo-3H-pyrrol-3-ylidene)-1,3-dihydro-2H-indol-2-one2H-INDOL-2-ONE, 3-(1,2-DIHYDRO-5-(5-HYDROXY-1H-INDOL-3-YL)-2-OXO-3H-PYRROL-3-YLIDENE)-1,3-DIHYDRO-, (3E)-

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External database identifiers

ChEBI:CHEBI:131914
ChEMBL:CHEMBL1652263
EPA DTXSID:DTXSID001028415
PubMed:21779844
PubMed:8597

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

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