C.I.Solvent Red 196
Solvent Red 196
CAS: 52372-36-8
Molecular Formula: C23H18N4O2
C.I.Solvent Red 196 - Names and Identifiers
| Name | Solvent Red 196 |
| Synonyms | Red BK Red FBK C.I. 505700 Plast red 3008 Solvent Red 196 solvent red 196 Fluorescent Red BK C.I.Solvent Red 196 fluorescence red BK Elbaplast Fluorescent Red 2B |
| CAS | 52372-36-8 |
| EINECS | 257-884-8 |
| InChI | InChI=1/C23H18N4O2/c1-3-26(4-2)15-10-9-14-11-16-21(29-20(14)12-15)17(13-24)23(28)27-19-8-6-5-7-18(19)25-22(16)27/h5-12H,3-4H2,1-2H3 |
C.I.Solvent Red 196 - Physico-chemical Properties
| Molecular Formula | C23H18N4O2 |
| Molar Mass | 382.41 |
| Density | 1.34±0.1 g/cm3(Predicted) |
| Boling Point | 575.3±60.0 °C(Predicted) |
| Flash Point | 301.7°C |
| Vapor Presure | 3.08E-13mmHg at 25°C |
| pKa | 4.58±0.40(Predicted) |
| Storage Condition | RT, dry, sealed |
| Refractive Index | 1.702 |
| Physical and Chemical Properties | Red powder with fluorescence. Insoluble in water. Light fastness, good heat stability, up to 300 ℃. |
C.I.Solvent Red 196 - Reference Information
| LogP | 3.6 at 25℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | fluorescent red BK is used for coloring polystyrene, polyvinyl chloride and polycarbonate plastics. Suitable for light transparent color. |
| Production method | Using 4-diethylaminosalicylaldehyde, 2-cyanomethylbenzimidazole, and methyl cyanoacetate as raw materials. First, 4-diethylaminosalicylaldehyde is condensed with 2-cyanomethylbenzimidazole in DMF solvent, and then reacted with methyl cyanoacetate to obtain the product. After post-treatment and drying, the finished product is obtained. Or the product is obtained by refluxing C.I.Solvent Red 197 with hydrochloric acid. or (C.I.solvent ned 197). 11.4g of C.I. solvent red 197 and 200mL of concentrated hydrochloric acid were added to the reaction bottle, and refluxed at 100-103 ℃ for 2.5h to measure the end point of the reaction. At the end of the reaction, 500g of ice was added, neutralized with 50% NaOH solution to pH = 7.5, filtered, washed and dried to obtain red dye. |
Last Update：2024-04-10 22:29:15
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