 
						| Synonyms | Bortezomib USP Impurity G, Bortezomib (S,S)-Diastereomer (USP) | 
|---|---|
| Chemical Name | [(1S)-3-Methyl-1-({(2S)-3-phenyl-2-[(pyrazin-2-ylcarbonyl)amino]propanoyl} amino)butyl]boronic acid | 
| CAS No | 1132709-14-8 | 
| Molecular Formula | C19H25BN4O4 | 
| Molecular Weight | 384.25 | 
 Bortezomib (1S, 2R)-Isomer
 Bortezomib (1S, 2R)-Isomer