Pigment yellow 139

Pigment yellow 139
Names
Other names
Lithol, Fast Yellow 1840
Identifiers
36888-99-0
ECHA InfoCard 100.048.399
Properties
C16H9N5O6
Appearance orange solid
Density 1.742 g/cm3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Pigment yellow 139 is an organic compound that is used as a yellow-orange pigment. It is classified as a derivative of isoindoline. This yellow-orange solid is virtually insoluble in most solvents.[1]

The species is prepared by addition of ammonia to o-phthalonitrile to give the diiminoisoindoline, which in turn condenses with barbituric acid.[2]

References

  1. ↑ K. Hunger. W. Herbst "Pigments, Organic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2012. doi:10.1002/14356007.a20_371
  2. ↑ Volker Radtke, Peter Erk andBenno Sens "Isoindoline Pigments" in Edwin B. Faulkner, Russell J. Schwartz in High Performance Pigments. Edited by Edwin B. Faulkner and Russell J. Schwartz, Wiley-VCH, Weinheim. 2009. doi: 10.1002/9783527626915.ch14
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