Pigment Yellow 10

Pigment Yellow 10
Names
	Other names Benzidine Yellow 10G, Sanyo Pigment Yellow 8105
Identifiers
CAS Number	6407-75-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	21172416;
ECHA InfoCard	100.026.401
PubChem CID	21118695;
UNII	F4E9M94HBX ;
CompTox Dashboard (EPA)	DTXSID50884296 ;
	InChI InChI=1S/C16H12Cl2N4O/c1-10-15(20-19-14-9-11(17)7-8-13(14)18)16(23)22(21-10)12-5-3-2-4-6-12/h2-9,15H,1H3 Key: SYIDJAUAPDQFRN-UHFFFAOYSA-N;
	SMILES Clc1ccc(Cl)cc1N=Nc2c(C)nn(c2O)-c3ccccc3;
Properties
Chemical formula	C16H12Cl2N4O
Molar mass	347.20 g·mol−1
Appearance	Yellow solid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Pigment Yellow 10 is an organic compound that is classified as a monoazopyrazolone pigment. It is used as a yellow colorant, notably as yellow road marking on highways in the US.

Pigment Yellow 10 is commonly used for yellow road markings

The compound is synthesized by coupling the diazonium salt derived from dichloroaniline with the pyrazolone.^[1] The structure of the dye, as determined by X-ray crystallography, consists of planar molecule with a C=O bond and two hydrazone groups.^[2]

References

^ K. Hunger; W. Herbst (2012). "Pigments, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a20_371. ISBN 978-3527306732.
^ A. Whitaker (1988). "CI Pigment Yellow 10, 4-[2',5'-(dichlorophenyl)hydrazono]-5-methyl-2-phenyl-3H-pyrazol-3-one". Acta Crystallographica C. C44 (10): 1767–70. Bibcode:1988AcCrC..44.1767W. doi:10.1107/S0108270188006791.

[Ullmann1-1] K. Hunger; W. Herbst (2012). "Pigments, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a20_371. ISBN 978-3527306732.

[2] A. Whitaker (1988). "CI Pigment Yellow 10, 4-[2',5'-(dichlorophenyl)hydrazono]-5-methyl-2-phenyl-3H-pyrazol-3-one". Acta Crystallographica C. C44 (10): 1767–70. Bibcode:1988AcCrC..44.1767W. doi:10.1107/S0108270188006791.

[1]

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