CAS Number: N/A

Alternate CAS#:

Chemical Name: Bortezomib Impurity 55

Molecular Formula: C38H54BN3O6

Molecular Weight: 659.68

CAS Number: 205393-21-1; 789472-91-9 (free base)

Alternate CAS#:

Chemical Name: Bortezomib Impurity 54 HCl

Molecular Formula: C24H37BN2O3. HCl

Molecular Weight: 412.38 36.46

CAS Number: 1187479-72-6

Alternate CAS#:

Chemical Name: Bortezomib Impurity 53

Molecular Formula: C29H45BN2O5

Molecular Weight: 512.5

CAS Number: 87304-47-0

Alternate CAS#:

Chemical Name: Bortezomib Impurity 52

Molecular Formula: C15H26BClO2

Molecular Weight: 284.63

CAS Number: 87249-60-3

Alternate CAS#:

Chemical Name: Bortezomib Impurity 51

Molecular Formula: C11H17BCl2O2

Molecular Weight: 262.97

CAS Number: 84110-34-9

Alternate CAS#:

Chemical Name: Bortezomib Impurity 50

Molecular Formula: C14H25BO2

Molecular Weight: 236.16

CAS Number: N/A

Alternate CAS#:

Chemical Name: Bortezomib Impurity 5

Molecular Formula: C19H22N4O4

Molecular Weight: 370.41

CAS Number: N/A

Alternate CAS#:

Chemical Name: Bortezomib Impurity 49

Molecular Formula: C19H24N4O3

Molecular Weight: 356.43

CAS Number: 289472-81-7

Alternate CAS#:

Chemical Name: Bortezomib Impurity 48

Molecular Formula: C19H24N4O3

Molecular Weight: 356.43

CAS Number: 1158974-93-6

Alternate CAS#:

Chemical Name: Bortezomib Impurity 47 HCl

Molecular Formula: C5H14BNO2. HCl

Molecular Weight: 130.98 36.46

CAS Number: N/A

Alternate CAS#:

Chemical Name: Bortezomib Impurity 45

Molecular Formula: C19H24N4O3

Molecular Weight: 356.43

CAS Number: N/A

Alternate CAS#:

Chemical Name: Bortezomib Impurity 44

Molecular Formula: C15H14N4O3

Molecular Weight: 298.3