Product Description
Solvent Blue 104 is a high-performance anthraquinone-based solvent dye, also commercially named Transparent Blue BB and Solvent Blue RBL. Its systematic chemical name is 1,4-bis[(2,4,6-trimethylphenyl)amino]-9,10-anthraquinone, featuring the molecular formula C₃₂H₃₀N₂O₂ and a molecular weight of 474.59. The product holds CAS registry number 116-75-6 and EINECS number 204-155-7.
This premium colorant is produced via multi-step chemical reactions. Taking 1,4-dihydroxyanthraquinone and 2,4,6-trimethylaniline as core raw materials, it undergoes precise reduction, condensation and oxidation processes. The refined synthesis route endows the dye with stable color rendering performance and consistent product quality for industrial application.
Product Parameters
| 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) |
Application Scenarios
Also known as Transparent Blue 2B, Solvent Blue 104 is a versatile industrial colorant tailored for diverse coloring scenarios. It is extensively adopted for tinting plastic products, packaging materials and decorative substrates, and works perfectly in coatings and printing ink formulations. Additionally, it serves as an ideal coloring agent for polyester and nylon fibers, delivering even, stable and high-transparency blue coloration for finished products.
