| Molecular Formula | C30H20N8Na2O12S2 |
| Molar Mass | 794.63574 |
| Use | Uses acid Brown for wool, nylon dyeing and printing, red light brown. |
| Raw Materials | Resorcinol Diphenylamine 4'-Aminoacetanilide 2-CHLORO-5-NITROBENZENESULFONIC ACID 2-(4-Aminoanilino)-5-nitrobenzenesulphonic acid Resorcinol |
introduction
acid brown 354 is an acid complex dye, which can be used for dyeing wool, nylon and printing.
production method
Using resorcinol, 2-chloro-5-nitrobenzene sulfonic acid and p-aminoacetanilide as raw materials, first 2-chloro-5-nitrobenzene sulfonic acid and p-aminoacetanilide are condensed and hydrolyzed to obtain intermediate 4-nitro-4'-aminodiphenylamine-2-sulfonic acid. Finally, the product is obtained by coupling 2mol of the intermediate with 1mol of resorcinol. The finished product is salted out, filtered, dried and crushed.