Pigment Yellow 16 is an
organic compound that is classified as a
diarylide pigment.
Pigment Yellow 16 is used as a yellow
colorant, and is classified as an
arylide yellow. Also called permanent yellow, its
color index number is 20040.
The compound is obtained via
acetoacetylation of
o-tolidine using
diketene. The resulting bisacetoacetylated compound is coupled with two equiv of the
diazonium salt obtained from
2,4-dichloroaniline.
[K. Hunger. W. Herbst "Pigments, Organic" in ''Ullmann's Encyclopedia of Industrial Chemistry'', Wiley-VCH, Weinheim, 2012. {{doi, 10.1002/14356007.a20_371]
References
Biphenyls
Organic pigments
Shades of yellow
Chloroarenes
Diarylide pigments