Pigment Red 169

Product NamePIGMENT RED 169
SynonymsC.I.Pigment Red 169; P.R.169
C.I. 45160:2
CAS NO.12237-63-7
Molecular Weight443.56
Molecular FormulaC28H31N2O3
ColorRed powder

Molecular structure formula:

Fastness Properties of Pigment Red 169:

Light Fastness3
Heat Resistance(℃)140
Water Resistance3
Oil Resistance3
Acid Resistance3
Alkali Resistance3
Alcohol Resistance3

Main application: Water based ink, Offset ink, Solvent based ink, Plastic, Paint, Textile printing

We have various pigment grades and properties to meet different customers’ needs, please specify your application and requirements so that we can recommend accordingly.  E-mail: sy@sypigment.com

Product Description of Pigment Red 169:

Pigment Red 169 a pure blue red color, which meets the color requirements of three-color or four-color printing inks. The specific surface area of Irgalite Red FB is 89m2/g. Mainly used for printing inks, especially toluene gravure printing inks and water-based soft printing inks, and can be used in color matching with C.I. Pigment Red 57:1; sometimes due to the content of copper ferricyanide, the processing characteristics of the printing ink are affected.

C.I. Pigment Red 169, in the form of a red powder, is a triacrylcarbonium dye that can be used in printing ink applications. This product has a specific gravity between 1.40 and 1.60, a bulk volume between 5.0 and 5.5 l/kg, and an average particle size between 100 and 200 nanometers.

TDS (Pigment Red 169) MSDS (Pigment Red 169)


  • Pigment Red 169
  • 12237-63-7
  • C.I. Pigment Red 169
  • copper;[6-(diethylamino)-9-(2-ethoxycarbonylphenyl)xanthen-3-ylidene]-diethylazanium;iron(2+);hexacyanide
  • EINECS 235-469-2
  • EC 235-469-2
  • Rhodamine 6g (copper ferocyanide)
  • Ferrate(4-), hexakis(cyano-C)-, ET 2-(6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl)benzoate copper(2+) salts
  • 237R637

IUPAC Name: copper;[6-(diethylamino)-9-(2-ethoxycarbonylphenyl)xanthen-3-ylidene]-diethylazanium;iron(2+);hexacyanide
InChI: InChI=1S/2C30H35N2O3.6CN.Cu.Fe/c2*1-6-31(7-2)21-15-17-25-27(19-21)35-28-20-22(32(8-3)9-4)16-18-26(28)29(25)23-13-11-12-14-24(23)30(33)34-10-5;6*1-2;;/h2*11-20H,6-10H2,1-5H3;;;;;;;;/q2*+1;6*-1;2*+2
Canonical SMILES: CCN(CC)C1=CC2=C(C=C1)C(=C3C=CC(=[N+](CC)CC)C=C3O2)C4=CC=CC=C4C(=O)OCC.CCN(CC)C1=CC2=C(C=C1)C(=C3C=CC(=[N+](CC)CC)C=C3O2)C4=CC=CC=C4C(=O)OCC.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[Fe+2].[Cu+2]

Property NameProperty Value
Molecular Weight1218.7
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count20
Rotatable Bond Count18
Exact Mass1217.412513
Monoisotopic Mass1217.412513
Topological Polar Surface Area226 Ų
Heavy Atom Count84
Formal Charge0
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently-Bonded Unit Count10
Compound Is CanonicalizedYes