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Chemical compound From Wikipedia, the free encyclopedia
Violanthrone, also known as dibenzanthrone, is an organic compound that serves as a vat dye and a precursor to other vat dyes. X-ray crystallography confirms that the molecule is planar with C2v symmetry.[1] Isomeric with violanthrone is isoviolanthrone, which has a centrosymmetric structure.[2]
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Names | |
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Preferred IUPAC name
Anthra[10,1,2-cde]benzo[rst]pentaphene-5,10-dione | |
Other names
Dibenzanthrone, Tinon Dark Blue BOA, Ahcovat Dark Blue BO, Violanthrone A, Bianthrone A, Irgalite Blue 2R, Paradone Dark Blue | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.003.775 |
EC Number |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C34H16O2 | |
Molar mass | 456.48964 |
Appearance | dark blue solid |
Density | 1.53 g/cm3 |
-204.8·10−6 cm3/mol | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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It is produced by coupling of two molecules of benzanthrone.[3][4][5][6]
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