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Bortezomib Impurity S,S-isomer

Product Code:

BTB/1002

CAS Number:

1132709-14-8

Molecular Formula:

C19H25BN4O4

Molecular Weight:

384.24
Synonyms : B-[(1S)-3-methyl-1-[[(2S)-1-oxo-3-phenyl-2-[(2-pyrazinylcarbonyl)-amino]propyl]amino]butyl]-boronic Acid

Bortezomib Impurity S,R-isomer

Product Code:

BTB/1003

CAS Number:

1132709-16-0

Molecular Formula:

C19H25BN4O4

Molecular Weight:

384.24
Synonyms : B-[(1S)-3-Methyl-1-[[(2R)-1-oxo-3-phenyl-2-[(2-pyrazinylcarbonyl)amino]propyl]amino]butyl]boronic Acid

Bortezomib Impurity G

Product Code:

BTB/1004

CAS Number:

289472-81-7

Molecular Formula:

C19H24N4O3

Molecular Weight:

356.42
Synonyms : N-((R)-1-(((R)-1-Hydroxy-3-methylbutyl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide