| Name | Direct Bordeaux NGB |
| Synonyms | Direct Bordeaux NGB |
| Molecular Formula | C33H23O9N7S2Na2 |
| Use | Direct jujube NGB is mainly used for cotton, viscose fiber fabric dyeing, can also be used for silk, nylon and polyamide blended fabric dyeing. Also used for paper, leather coloring. |
4,4 '-diaminobenzoylaniline, N-phenyl J acid (2-phenyl amino -5-phenol -7-sulfonic acid) and N-phenyl & gamma; acid as raw materials, first 4,4,4'-diaminobenzoylaniline is double nitrided, and then combined with N-phenyl J acid and N-phenyl & gamma; acid coupling product. The finished product is salted out, filtered, dried and crushed.