Vat Yellow 1

Vat Yellow 1
Names
	Preferred IUPAC name Benzo[h]benzo[6,7]acridino[2,1,10,9-klmna]acridine-8,16-dione
	Other names Flavanthrone, Pigment Yellow 24, Flavanthrene, Indofast Yellow, Sandothrene NGN
Identifiers
CAS Number	475-71-8;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL137369;
ChemSpider	61374;
ECHA InfoCard	100.006.818
PubChem CID	68059;
UNII	5FA52JAB7C ;
CompTox Dashboard (EPA)	DTXSID6060056 ;
	InChI InChI=1S/C28H12N2O2/c31-27-15-7-3-1-5-13(15)25-21-17(27)9-12-20-23(21)24-19(29-25)11-10-18-22(24)26(30-20)14-6-2-4-8-16(14)28(18)32/h1-12H Key: KJPJZBYFYBYKPK-UHFFFAOYSA-N;
	SMILES C1=CC=C2C(=C1)C3=NC4=C5C6=C(C=C4)C(=O)C7=CC=CC=C7C6=NC8=C5C3=C(C2=O)C=C8;
Properties
Chemical formula	C28H12O2N2
Molar mass	408.40708 g/mol
Magnetic susceptibility (χ)	-241.0·10−6 cm3/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Vat Yellow 1 is a vat dye, yellow in appearance under some conditions used in cloth dyeing.^[1] Its synonyms are flavanthrone and Indofast Yellow, and it is in the class of anthraquinone-type compounds.^[2]^{[better source needed]}

^ Hunger, K.; Herbst, W. (2012). "Pigments, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a20_371. ISBN 978-3527306732.(subscription required)
^ "Vat Yellow 1" 黄黄色1 [Vat Yellow 1] (blog). worlddyevariety.com. December 7, 2016. Retrieved 7 December 2016.^{[better source needed]}

[Ullmann-1] Hunger, K.; Herbst, W. (2012). "Pigments, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a20_371. ISBN 978-3527306732.(subscription required)

[2] "Vat Yellow 1" 黄黄色1 [Vat Yellow 1] (blog). worlddyevariety.com. December 7, 2016. Retrieved 7 December 2016.^{[better source needed]}

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