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

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