Violanthrone

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Violanthrone
Violanthrone ChemDraw.png
Names
Other names
Dibenzanthrone, Tinon Dark Blue BOA, Ahcovat Dark Blue BO, Violanthrone A, Bianthrone A, Irgalite Blue 2R, Paradone Dark Blue
Identifiers
116-71-2
ChemSpider 8015
EC number 204-152-0
Jmol-3D images Image
PubChem 8317
Properties
C34H16O2
Molar mass 456.48964
Appearance dark blue solid
Density 1.53 g/cm3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

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]

Synthesis[edit]

It is produced by coupling of two molecules of benzanthrone.[3]

References[edit]

  1. ^ The crystal structure of violanthrone (dibenzanthrone) Bolton, W.; Stadler, H. P. Acta Crystallographica 1964, volume 17, pp. 1015-20. doi: 10.1107/S0365110X64002584
  2. ^ Bien, H.-S.; Stawitz, J.; Wunderlich, K. (2005), "Anthraquinone Dyes and Intermediates", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, doi:10.1002/14356007.a02_355 
  3. ^ Manufacture of dibenzanthrone compounds