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
CAS Number	128-66-5^N
3D model (Jmol)	Interactive image
ChemSpider	29142^Y
ECHA InfoCard	100.004.459
KEGG	C19545^Y
PubChem	31412
InChI InChI=1S/C24H12O2/c25-23-17-7-3-1-5-13(17)15-9-11-20-22-16(10-12-19(23)21(15)22)14-6-2-4-8-18(14)24(20)26/h1-12H^Y Key: ZTWQZJLUUZHJGS-UHFFFAOYSA-N^Y InChI=1/C24H12O2/c25-23-17-7-3-1-5-13(17)15-9-11-20-22-16(10-12-19(23)21(15)22)14-6-2-4-8-18(14)24(20)26/h1-12H Key: ZTWQZJLUUZHJGS-UHFFFAOYAD
SMILES O=C2c1ccccc1c6c5c2ccc4c3ccccc3C(=O)c(c45)cc6
Properties
Chemical formula	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
Solubility in water	soluble
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).
N verify (what is ^YN ?)
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

↑ 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

Vat dyes

Blue	4 36

Green	1 9

Orange	1 3

Red	29

Yellow	1 4

Dyeing

Techniques	Batik Dyeing Ikat Kalamkari Katazome Leheria Mordant Reactive dye printing Resist Ring dyeing Rōketsuzome Shibori Tie-dye Tsutsugaki

Types of dyes	Dyes Natural Acid Reactive Solvent Substantive Sulfur Vat Disperse

Traditional textile dyes	Armenian cochineal Black walnut Bloodroot Brazilin Cochineal Cudbear Cutch Dyewoods Fustic Gamboge Henna Indigo Kermes Logwood Madder Polish cochineal Saffron Turmeric Tyrian purple Weld Woad

History	Use of saffron In Scottish Highlands

Craft dyes	Dylon Inkodye Procion Rit

Reference	Glossary of dyeing terms List of dyes

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