Pigment Yellow 10

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

Pigment Yellow 10

Names
Other names Benzidine Yellow 10G, Sanyo Pigment Yellow 8105
Identifiers
CAS Number	6407-75-6 Y
3D model (JSmol)	Interactive image
ChemSpider	21172416
ECHA InfoCard	100.026.401
PubChem CID	21118695
UNII	F4E9M94HBX Y
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

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]