Products Description of Solvent Blue 104 CAS#116-75-6
Solvent Blue 104 (CAS# 116-75-6, EINECS# 204-155-7)—commercially designated as Solvent Blue RBL or Transparent Blue BB/2B—is a premium anthraquinone solvent dye. Chemically structured as 1,4-bis[(2,4,6-trimethylphenyl)amino]-9,10-anthraquinone (C32H30N2O2, MW: 474.59), it is synthesized via the precise reduction, condensation, and oxidation of 1,4-dihydroxyanthraquinone with 2,4,6-trimethylaniline. The resulting dye offers high purity, outstanding color fidelity, and reliable processing performance in demanding organic matrices.
Solvent Blue 104 Chemical Properties
| Melting point | 236.5-237.5 °C |
| Boiling point | 639.5±55.0 °C(Predicted) |
| density | 1.220±0.06 g/cm3(Predicted) |
| vapor pressure | 0-0.001Pa at 20-25℃ |
| storage temp. | Refrigerator, under inert atmosphere |
| solubility | Chloroform (Slightly) |
| form | Solid |
| pka | -0.26±0.20(Predicted) |
| color | Very Dark Blue to Black |
| Dissociation constant | 0 at 30℃ |
| CAS DataBase Reference | 116-75-6(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Solvent Blue 104 (116-75-6) |
Product Application of Solvent Blue 104 CAS#116-75-6
Valued for its brilliant transparency, superior lightfastness, and excellent solubility in organic media, Solvent Blue 104 serves as a primary colorant across multiple industrial manufacturing sectors:
Plastics & Polymer Coloration: Widely used in transparent and opaque engineering plastics, consumer packaging, and decorative resin products.
Synthetic Fibers: Ideal for mass coloration (melt spinning) of polyester (PET) and polyamide (nylon) filaments.
Industrial Coatings & Printing Inks: Applied in high-grade surface coatings, lacquers, specialty wood stains, and gravure/flexographic printing inks.
