| Chemical Name | Reactive Blue 221 |
| C.I. No. | – |
| CAS No. | 93051-41-3 |
| Synonyms | Reactive Blue BRF, Reactive Blue M-BRE, Reactive Brilliant BlueME-BR, Best Reactive Blue FBR, Indofix Blue MERI, Meactive Blue FRB, Orco Reactive BF-BRF, Reactron Supra Blue FBR, Sumiflx Supra Blue BRF, Reactive Blue M-BRF |
| Molecular Formula | C33H24ClCuN9Na3O15S4 |
| Molecular Weight | 1082.83 |
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