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Vat Yellow 4
Vat Yellow 4, also known as Golden Yellow GK, dibenzochrysenedione, dibenzpyrenequinone, Tyrian Yellow I-GOK, and C.I. 59100, is a yellow synthetic anthraquinone vat dye. Chemically it is dibenzo[b,def]chrysene-7,14-dione, or 3,4:8,9-dibenzopyrene-5,10-dione, or C24H12O2. It has the appearance of a viscous orange liquid.
Additional recommended knowledge
Vat Yellow 4 is used mostly as a dye for textiles and paper.
Together with benzanthrone, it is used in some older pyrotechnic compositions for green and yellow colored smokes.
Vat Yellow 4 is a Group 3 carcinogen according to the IARC, as the evidence of its carcinogenity to humans is inadequate.
Its CAS number is [128-66-5] and its SMILES structure is O=C(c5ccccc56) c2c1c6ccc(C (c3ccccc34)=O) c1c4cc2.
Categories: Anthraquinone dyes | Polycyclic aromatic compounds | Ketones | IARC Group 3 carcinogens
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Vat_Yellow_4". A list of authors is available in Wikipedia.|