CAS Number: 3680-69-1

Alternate CAS#:

Chemical Name: Tofacitinib Impurity Q

Molecular Formula: C6H4ClN3

Molecular Weight: 153.57

CAS Number: 1252883-90-1

Alternate CAS#:

Chemical Name: Tofacitinib Impurity P

Molecular Formula: C20H25N5

Molecular Weight: 335.46

CAS Number: 1260614-73-0

Alternate CAS#:

Chemical Name: Tofacitinib Impurity N

Molecular Formula: C13H19N5

Molecular Weight: 245.33

CAS Number: 1675248-19-7

Alternate CAS#:

Chemical Name: Tofacitinib Impurity 61

Molecular Formula: C16H22N6O2

Molecular Weight: 330.39

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tofacitinib Impurity K

Molecular Formula: C16H21N5O3

Molecular Weight: 331.38

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tofacitinib Impurity J

Molecular Formula: C14H22N2 2HCl

Molecular Weight: 218.34 2x36.46

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tofacitinib Impurity I

Molecular Formula: C14H22N2 2HCl

Molecular Weight: 218.34 2x36.46

CAS Number: 384338-23-2

Alternate CAS#:

Chemical Name: Tofacitinib Impurity F

Molecular Formula: C14H22N2

Molecular Weight: 218.34

CAS Number: 1092578-47-6 (free base)

Alternate CAS#:

Chemical Name: Tofacitinib Impurity C Citrate

Molecular Formula: C16H20N6O. C6H8O7

Molecular Weight: 312.38 192.13

CAS Number: 477600-73-0

Alternate CAS#:

Chemical Name: Tofacitinib Impurity 9

Molecular Formula: C20H25N5

Molecular Weight: 335.46

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tofacitinib Impurity 8

Molecular Formula: C21H27N7O3

Molecular Weight: 425.49

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tofacitinib Impurity 7

Molecular Formula: C16H22N6

Molecular Weight: 298.39