Pigment Orange 16 – Corimax Orange BRN
Pigment Orange 16 is a bright, strong orange pigment widely used in coatings, inks, paints, and plastics. Known for its excellent lightfastness, weather resistance, and chemical stability, it delivers vibrant and long-lasting color, making it ideal for both indoor and outdoor applications. This pigment provides good opacity and color strength, ensuring a rich orange hue that maintains its vibrancy over time. Pigment Orange 16 is often chosen for industrial coatings, automotive finishes, and packaging, where durability and color consistency are essential. It is also valued for its non-toxic properties and environmental safety in various manufacturing sectors.
Technical parameters of Pigment orange 16
Color Index No. | Pigment orange 16 |
Product name | Corimax Orange BRN |
Product category | Organic Pigment |
CAS Number | 3520-72-7 |
EU Number | 222-530-3 |
Chemical Family | Disazo |
Molecular Weight | 623.49 |
Molecular Formula | C32H24CI2N8O2 |
P.H. Value | 7 |
Density | 1.5 |
Oil Absorption(ml/100g)% | 35 |
Light Fastness(coating) | 5 |
Heat Resistance(coating) | 180 |
Light Fastness(plastic) | 6 |
Heat Resistance(plastic) | 200 |
Water Resistance | 5 |
Oil Resistance | 4 |
Acid Resistance | 4 |
Alkali Resistance | 4 |
Color | ![]() |
Hue distribution |
Application:
Recommended for powder coatings, printing pastes, PVC, rubber, PP, PE, offset inks, water-based inks, solvent inks
Suggested for PS, PU, UV inks.
Related Information
There are 36 types of pigment commercial dosage forms, and they still have a certain market in Europe, America and Japan. It gives a yellowish orange color, which is significantly redder than the C.I. pigment orange 13 and pigment orange 34. Mainly used in printing inks, and can be used to adjust the color light of C.I. Pigment Yellow 12. Resinized formulations have high transparency, but poor fluidity. Due to their poor fastness properties, they are mostly used for packaging inks with high transparency and low cost.
Aliases: 21160; C.I.Pigment Orange 16; P.O.16; Dianisidine Orange; 2,2'-[[3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl]bis(azo)]bis(3-oxo-N-phenyl-Butanamide]; 2,2'-[(3,3'-dimethoxybiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(3-oxo-N-phenylbutanamide)
InChI: InChI=1/C34H32N6O6/c1-21(41)31(33(43)35-25-11-7-5-8-12-25)39-37-27-17-15-23(19-29(27)45-3)24-16-18-28(30(20-24)46-4)38-40-32(22(2)42)34(44)36-26-13-9-6-10-14-26/h5-20,31-32H,1-4H3,(H,35,43)(H,36,44)/b39-37+,40-38+
Molecular Structure:
Physical and chemical properties
Solubility: Do not dissolve in water and ethanol, dissolve in concentrated sulfuric acid, and show orange precipitate after dilution.
Hue or light: red light orange
Relative density: 1.28-1.51
Bulk density / (lb / gal): 10.6-12.5
pH value / (10% slurry): 5.0-7.5
Oil absorption / (g / 100g): 28-54
Covering power: translucent
Structural Identifiers
IUPAC Name: 2,2'-[(3,3'-Dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(diazene-2,1-diyl)]bis(3-oxo-N-phenylbutanamide)
SMILES: COC1=CC(=CC=C1N=NC(C(C)=O)C(=O)NC1=CC=CC=C1)C1=CC(OC)=C(C=C1)N=NC(C(C)=O)C(=O)NC1=CC=CC=C1
InChI String: InChI=1/C34H32N6O6/c1-21(41)31(33(43)35-25-11-7-5-8-12-25)39-37-27-17-15-23(19-29(27)45-3)24-16-18-28(30(20-24)46-4)38-40-32(22(2)42)34(44)36-26-13-9-6-10-14-26/h5-20,31-32H,1-4H3,(H,35,43)(H,36,44)
InChIKey: DMPXHEMGDYKSFL-UHFFFAOYSA-N
Computed Properties
Property Name | Property Value |
Molecular Weight | 620.7 g/mol |
XLogP3-AA | 6.7 |
Hydrogen Bond Donor Count | 2 |
Hydrogen Bond Acceptor Count | 10 |
Rotatable Bond Count | 13 |
Exact Mass | 620.23833276 Da |
Monoisotopic Mass | 620.23833276 Da |
Topological Polar Surface Area | 160 Ų |
Heavy Atom Count | 46 |
Formal Charge | 0 |
Complexity | 1000 |
Isotope Atom Count | 0 |
Defined Atom Stereocenter Count | 0 |
Undefined Atom Stereocenter Count | 2 |
Defined Bond Stereocenter Count | 0 |
Undefined Bond Stereocenter Count | 0 |
Covalently-Bonded Unit Count | 1 |
Compound Is Canonicalized | Yes |