Diarylide Yellow Pigment 4 Oz Vol Jar

SKU: NAP-436-11-896
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Diarylide Yellow is a high-performance red-shade yellow azo pigment, that is more opaque, has good tinting strength, and enhanced outdoor durability. Diarylide Yellow (PY83) pigments offer better solvent and migration resistance than monoazo yellow pigments making them a good pigment for inks, plastics, and paint. Our Diarylide yellow is a reddish-yellow pigment recommended for paints as an alternative to replace reddish shade chrome yellows to produce lead-free paints as well as for inks.

Pigment Information
Color: Yellow
Pigment Classification: Synthetic Organic
Colour Index: Pigment Yellow 83 (21108)
Chemical Name: Diarylide Yellow (3,3' dichlorobenzidine coupled with acetoacet-4-methoxy-5-chloro-o-anisidide)
Chemical Formula: C36H32Cl4N6O8
Chemical Structure:
CAS No.: 5567-15-7
Series No.: 4
ASTM Lightfastness
Acrylic: I
Oil: I
Watercolor: I
Physical Properties
Specific Surface: 20 m2/g
Density: 1.5 g/cm3
Bulk Volume: 4.3 l/kg
Refractive Index: 1.721
Oil Absorption: 58 ml oil / 100 grams pigment
Health and Safety There are no acute or known chronic health hazards associated with the anticipated use of this product (most chemicals are not fully tested for chronic toxicity). Always protect yourself against potentially unknown chronic hazards of this and other chemical products by keeping them out of your body. Do this by avoiding ingestion, excessive skin contact, and inhalation of spraying mists, sanding dust, and vapors from heating. Conforms to ASTM D-4236.

For a detailed explanation of the terms in the table above, please visit .

Origin and History

The first azo pigment, tartrazine yellow, PY100, which is still used in artists’ paints, was patented in 1884. β-naphthol azo pigments were first introduced from 1895 to 1911, and they are still in production. The first Hansa yellow, PY1, was patented in 1909, and the first diarylide was synthesized in 1911. Because their importation from Germany was forbidden during World War I, American manufacturers began to study azo dyes in depth. Azo pigments have become the largest class of synthetic organic pigments because of their ease of preparation and wide range of colors. Diarylide yellow pigments are made in a color range from greenish- to reddish-yellow shades.

Diarylides were not widely used until almost twenty-five years after their synthesis in 1911. At that time, they were sold as pigments for rubber under the trade names Vulcan Fast Yellows and Oranges. Diarylides are an important class of azo pigments and now account for approximately 80 percent of all yellow pigments. They are primarily used in printing inks, where twenty-five thousand metric tons were used in 1989.

Diarylide Yellow, PY83, also known as Permanent Yellow HR, is more non-bleeding and lightfast than other diarylide yellows. It was introduced in 1958 by Hoechst and is a reddish yellow pigment used in plastics, printing, and artists’ colors.

Pyrazolone Colour Index No. Naphthol Colour Index No. β-Naphthol Colour Index No. Arylide (Hansa) Colour Index No. Diarylide Colour Index No. Nickel-Azo Yellow Colour Index No. Benzimidazolone Colour Index No.
PO13 21110 PO38 12367 PO2 12060 PO1 11725 PY12 21090 PG10 12775 PBr25 12510
PY100 19140 PR1 12070 PO5 12075 PY1 11680 PY13 21110 PO36 11780
PR2 12310 PO17 15510 PY3 11710 PY14 21095 PO60 11782
PR5 12490 PR3 12120 PY4 11665 PY17 21105 PO62 11775
PR7 12420 PR4 12085 PY5 11660 PY55 21096 PR171 12512
PR8 12335 PR6 12090 PY9 11720 PY81 21127 PR175 12513
PR9 12460 PR48 15865 PY65 11740 PY83 21108 PR176 12515
PR12 12385 PR49 15630 PY73 11738 PY151 13980
PR14 12380 PR52 15860 PY74 11741 PY153 48545
PR17 12390 PR53 15585 PY75 11770 PY154 11781
PR18 12350 PR57 15850 PY97 11767 PY175 11784
PR22 12315 PR60 16105 PY98 11727
PR23 12355
PR31 12360
PR112 12370
PR119 12469
PR146 12485
PR170 12475
PR187 12468
PR188 12467
Pigment Names
Common Names:

Antique Orange Yellow
Antique Sun Yellow
Azo Yellow Deep
Azo Yellow Orange
Beach Yellow
Benzidine Yellow
Blockx Yellow
Bright Yellow
Cadmium Yellow Deep Hue
Cadmium Yellow Orange (hue)
C.I. Pigment Yellow 83
Deep Yellow
Diarylide HR
Diarylide Yellow
Diarylide Yellow 83
Diarylide Yellow Deep
Diazo Yellow
Disazo Yellow
Gamboge Extra
Hansa Yellow Orange
Indian Yellow (hue)
Indian Yellow Orange (hue)
Indian Yellow Permanent (hue)
Opaque Deep Yellow
Permanent Indian Yellow
Permanent Yellow Deep
Pigment Yellow 83
Primary Yellow
Scheveningen Yellow Deep
Stil De Grain Yellow (hue)
Tilt Yellow
Yellow Deep
Yellow Orange Azo


Diarylides are synthetic organic pigments formed by the coupling of tetraazotized benzidines with acetoacetarylides. They are disazo compounds with a backbone structure based on 3,3'-dichlorobenzidine.

Permanence and Compatibility

Diarylides have approximately twice the tinting strength of monoarylides and show improved bleed resistance and thermal stability due to their higher molecular weight.

Oil Absorption and Grinding

Diarylide yellow absorbs a large amount of oil—for every 100 grams of diarylide yellow 58 grams of linseed oil is needed to form a coherent paste, and is the oil absorption value for this pigment.


Diarylide yellow is not considered toxic, however, care should be used in handling the dry powder pigment to avoid inhaling the dust. All toxicological studies showed no signs of toxicity to humans or the environment.



Diarylide yellow is among organic pigments that contain inadvertent polychlorinated biphenyls (PCB) or dichlorobenzidine (DCB) compounds.

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A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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