Pigment Yellow 10

Last updated
Pigment Yellow 10
UpdatedPigmentYell10.png
Names
Other names
Benzidine Yellow 10G, Sanyo Pigment Yellow 8105
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.026.401 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
UNII
  • 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
  • Clc1ccc(Cl)cc1N=Nc2c(C)nn(c2O)-c3ccccc3
Properties
C16H12Cl2N4O
Molar mass 347.20 g·mol−1
AppearanceYellow solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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 Yellow road marking.jpg
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

  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.