| Chemical Name | Direct Red 9 |
| C.I. No. | – |
| CAS No. | 70209-93-7 |
| Synonyms | Best Direct Brilliant Pink B, Direct Brilliant Pink B, Direct Brilliant Pink B 145% |
| Molecular Formula | C34H19ClN8Na4O12S4 |
| Molecular Weight | 987.23 |
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