Product Description
Pigment Red 112 (CAS No. 6535-46-2) is an organic red pigment typically supplied in powder form. It is valued for its vivid red shade and high tinting strength, delivering strong coloration at relatively low pigment loadings. When exposed to concentrated sulfuric acid, it may exhibit a red-purple coloration; upon dilution, a blue-red precipitate may form. As an insoluble pigment, it is generally incorporated into suitable formulations through dispersion rather than dissolution. Its color strength and dispersibility make it suitable for selected applications in printing inks, paints and coatings, plastics, and other colored materials, depending on the grade and formulation requirements.

Product Parameters
| Product Name: | Pigment Red 112 |
| Synonyms: | PIGMENT RED 112;c.i. 12370;(4E)-N-(2-methylphenyl)-3-oxo-4-[(2,4,5-trichlorophenyl)hydrazinylidene]naphthalene-2-carboxamide;3-hydroxy-n-(2-methylphenyl)-4-((2,4,5-trichlorophenyl)azo)naphthalene-2-carboxamide;NAPTHOL RED FGR;PR112 NAPTHOL RED FGR;Pigment Fast Red SC;PigmentredBB |
| CAS: | 6535-46-2 |
| MF: | C24H16Cl3N3O2 |
| MW: | 484.76 |
| EINECS: | 229-440-3 |
| Product Categories: | Organics |
| Mol File: | 6535-46-2.mol |
Pigment Red 112 Chemical Properties
| Boiling point | 627.4±55.0 °C(Predicted) |
| Density | 1.42±0.1 g/cm3(Predicted) |
| Storage temp | Amber Vial, Refrigerator |
| Pka | 11.94±0.70(Predicted) |
| Form | Solid |
| Color | Red |
| Stability | Light Sensitive |
| LogP | 6.187 (est) |
| CAS DataBase Reference | 6535-46-2(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Pigment Red 112 (6535-46-2) |
Application Scenarios
Pigment Red 112 is used in a range of printing ink and coating applications where a bright red shade and reliable color performance are required.
Printing Inks: Suitable for selected letterpress, offset, packaging gravure, and flexographic ink formulations. Depending on the pigment grade and formulation, it may be incorporated into water-based, solvent-based, and UV-curable printing inks to deliver vivid red coloration and consistent color strength.
Paints and Coatings: Used in air-drying paints, baking enamel coatings, automotive refinish and other automotive coating systems, as well as industrial coatings. Its suitability depends on the required color characteristics, processing conditions, and performance specifications of the finished coating.
