| Chemical Name | Direct Black 4 |
| C.I. No. | 30245 |
| CAS No. | 2429-83-6 |
| Synonyms | Direct Black R, Direct Black RW |
| Molecular Formula | C35H27N9Na2O7S2 |
| Molecular Weight | 795.76 |
| Chemical Name | Direct Black 4 |
| C.I. No. | 30245 |
| CAS No. | 2429-83-6 |
| Synonyms | Direct Black R, Direct Black RW |
| Molecular Formula | C35H27N9Na2O7S2 |
| Molecular Weight | 795.76 |