Pharmaceutical Standards

Bortezomib R,R-Isomer Impurity

CAS Number

1132709-15-9

Bortezomib (1S,2R)-Isomer

CAS Number

1132709-16-0

Bortezomib Diastereomer (S,S)

CAS Number

1132709-14-8

Desisobutyl-n-butyl Bortezomib

CAS Number

1104011-35-9

Bortezomib Impurity A

CAS Number

289472-80-6

Bortezomib Impurity C

CAS Number

Bortezomib Impurity F

CAS Number

73058-37-4

Bortezomib Impurity G

CAS Number

289472-81-7

Bortezomib Impurity H

CAS Number

1446194-56-4

Bortezomib N-formyl analog

CAS Number

Bortezomib R and S Hydroperoxide

CAS Number

Bortezomib Impurity 2 (RR-Isomer)

CAS Number

Bortezomib Impurity 3

CAS Number

2748159-75-1

Bortezomib Impurity 4

CAS Number

862894-96-0

Bortezomib Impurity 7

CAS Number

Lenalidomide Standard

CAS Number

191732-72-6

Alternate CAS Number

1243329-97-6 (HCl salt) ; 1265684-15-8 (HBr salt) ; 1243330-05-3 (Sulfate salt)

Lenalidomide 4-Nitro Impurity

CAS Number

827026-45-9

Lenalidomide N-Formyl Impurity

CAS Number

2197414-56-3

Lenalidomide N-Methyl Impurity

CAS Number

2197421-58-0

Lenalidomide Impurity 1

CAS Number

2197414-57-4

Bortezomib Impurity 9

CAS Number

1194235-41-0

Bortezomib Impurity 11

CAS Number

862895-00-9

Bortezomib Impurity 14

CAS Number

205393-22-2

Bortezomib Impurity 16

CAS Number

Bortezomib Impurity 27

CAS Number

63-91-2

Bortezomib Impurity 37

CAS Number

1798895-16-5

Bortezomib Impurity 48

CAS Number

Bortezomib Impurity 49

CAS Number

Bortezomib Impurity 50

CAS Number

Bortezomib Acid Analog (Mixture)

CAS Number

2364553-64-8

Isoamylamide Impurity

CAS Number

Chemical Primary Standard

3-Aminophthalimide

CAS Number

2518-24-3

3-Hydroxy-4-methoxybenzonitrile

CAS Number

52805-46-6

Chemical Primary Standard

Clozapine EP Impurity A

CAS Number

50892-62-1

Clozapine EP Impurity B

CAS Number

263366-81-0

Clozapine EP Impurity C

CAS Number

6104-71-8

Clozapine EP Impurity D

CAS Number

65514-71-8

Clozapine Impurity 5

CAS Number

60091-87-4

N-Acetyl clozapine

CAS Number

1025951-76-1

1-Methylpiperazine

CAS Number

109-01-3

Alternate CAS Number

34352-59-5(DiHCl Salt)

N-Nitroso Clozapine

CAS Number

156632-03-0

N-Nitroso Clozapine EP Impurity A

CAS Number

90353-66-5

N-Nitroso Clozapine EP Impurity B (possibility 2)

CAS Number

Clozapine Nitroso EP Impurity C

CAS Number

Clozapine Nitroso EP Impurity C (TFA Salt)

CAS Number

Clozapine N-oxide

CAS Number

34233-69-7

N,N-Dinitroso Clozapine EP Impurity C

CAS Number