| Molecular Formula | C36H22N7Na3O10S3 |
| Molar Mass | 877.76509 |
| Physical and Chemical Properties | Chemical properties gray powder. The aqueous solution is dark purple and insoluble in ethanol. Its aqueous solution is added with concentrated hydrochloric acid to produce dark blue precipitate; adding concentrated alkali to produce dark purple precipitate. It is green and gray-blue in concentrated sulfuric acid, and purple after dilution. Slightly sensitive to hard water. |
| Use | Mainly used for cotton, hemp, viscose and other cellulose fiber fabric dyeing, can also be used for silk fabric dyeing, can also be used for leather, pulp dyeing. |
aniline, mixed Cliff acid, & gamma; Acid is used as raw material, aniline is diazotized and coupled with mixed Cliff acid, then the coupling product is diazotized, coupled with another mixed Cliff acid, and the second coupling product is diazotized again, and & gamma; Acid coupling product. The finished product is salted out, filtered, dried and crushed.