Pigment Orange 73

Pigment Orange 73 is a bright orange pigment and it belongs to DDP pigment. It also has excellent light and weather fastness. PO73 is very suitable in the high end industrial paint, such as automotive coating, solvent based baking enamel, powder coating and coil coating. However, its solvent resistance and weather resistance is not as good as other DDP pigments.

Product Details


Pigment Orange 73 has high coloring strength and excellent heat resistance. It offers orange color in paint system. It is non-migrated in plastics. Its resistance in toluene is also good.

Chemical information 

Color Index No:C.I.561170

Synonyms: 3,6-Bis(4-Tert-Butylphenyl)-1,4-Diketopyrrolo[3,4-C]Pyrrole;Permanent orange 3Rtn-P;

Molecular Structure:

Pigment Orange 73 molecular

Molecular Formula: C26H28N2O2 Molecular Weight: 400.51272
CAS No: 84632-59-7 Average Particle Size(um):/
Density(g/cm3): 1.21 EINECS No: 276-057-2
Oil Absorption(g/100g): 45 Specific surface(m2/g): 23.6
Chemical Class: / Melting point(/℃): /

Chemical resistance datas

Light fastness (Full) : 8 Light fastness(Tinting) : 7-8
Ethyl acetate: 3 Ethanol : 3-4
Heat stability (10min): 200 Xylene: 4-5
Toluene: 5 Water: 5
Migration: 5 Weather: 4-5



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: –

Packing methods

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