7,14-Dibenzpyrenequinone

7,14-Dibenzpyrenequinone
Names
Other names
Golden Yellow GK
Dibenzochrysenedione
Dibenzpyrenequinone
Tyrian Yellow I-GOK
C.I. 59100
Dibenzo[b,def]chrysene-7,14-dione
3,4:8,9-dibenzopyrene-5,10-dione
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.004.459
KEGG
Properties
C24H12O2
Molar mass 332.36 g·mol−1
Appearance yellow solid
Density 1.418g/cm3
Boiling point 606.7 °C (1,124.1 °F; 879.9 K) at 760 mmHg
insoluble
-250.3·10−6 cm3/mol
Hazards
Main hazards Possible carcinogen
Flash point 219.93 °C (427.87 °F; 493.08 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

7,14-Dibenzpyrenequinone is a yellow synthetic anthraquinone vat dye, known as Vat Yellow 4. It is a bright yellow solid. This dye 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. It is produced from 1,5-dibenzoylnaphthalene by oxidative (dehydrogenative) ring closure.[1]

Safety

Vat Yellow 4 is a Group 3 carcinogen according to the IARC, as the evidence of its carcinogenity to humans is inadequate.

References

  1. ↑ Bien, H.-S.; Stawitz, J.; Wunderlich, K., "Anthraquinone Dyes and Intermediates", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, doi:10.1002/14356007.a02_355
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