Pigment Yellow 81

Pigment Yellow 81 has a strong greenish shade and is similar to Pigment Yellow 3. It has satisfactory light fastness, good heat resistance and good solvent resistance. It is suitable for the metal decorative printing ink with solvent. In the alkyed based melamine paint, Pigment Yellow 81 has a light fastness of 6-7 and its heat resistance is also better tha other Diarylide Yellow.The light fastness of pigment yellow 81 in hard PVC can reach 7. And in polyolefin, its heat resistance is 260℃/5min. It is also applied in the cellulose acetate as colorant as well as textile printing.

Product Details


Pigment Yellow 81 is lemon yellow powder with strong green shade. It is opaque and with high coloring strength. Its performance in acid and alkali condition is good. The light fastness and migration resistance is also excellent.

Chemical information

Color Index No: CI 21127

Synonyms: Diarylide Yellow 10G; 2,2′-[(2,2′,5,5′-tetrachlorobiphenyl-4,4′-diyl)di(E)diazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide];

Molecular Structure:

pigment yellow 81 molecular

Molecular Formula:C36H32Cl4N6O4 Molecular Weight: 754.4891
CAS No: 2209-93-5 Average Particle Size:200nm
Density(g/cm3): 1.41-1.42 EINECS No:224-776-0
Oil Absorption(g/100g): 55-65 Specific surface(m2/g): 20
Chemical Class: Diarylide Yellow Melting point(/℃): 400

Chemical resistance datas:

Light fastness (Full) : 5-6 Light fastness(Tinting) : 5-6
Water :  5 Ethanol : 5
Heat stability (10min) :260℃ Ethyl acetate : 5
Acid: 5 Alkali : 5
Migration:5 Weather:2-3



Sheetfed offset ink: ◭ Water-based ink: ◭
Heat set ink: ◭ NC ink: ◭
Cold set ink: – Metal decorative ink: △
Gravure ink:  – UV curing ink(offset): ▲
Silkscreen ink: ◭ UV curing ink(Flexo): ▲
Coating Water based industrial paint: △ Powder Coatings: △
Solvent based industrial paint: △ Automotive coatings: –
Water based decorative paint : △ Wood coatings: –
Solvent based decorative paint: △ Amine curing epoxy coatings: –
Coil Coating: – Textile printing: ◭
Plastic PE: ◭ PA: –
PP: ◭ PC: –
PVC: ▲ Pom: –
ABS: – Rubber: ▲
PUR: ◭ Fibers: △

▲Very suitable    ◭Suitable   Δ Limited suitable    -Not suitable

Packing methods

25kgs craft bag with pallets; 7-8MT in 20’FCL