Impurity - Tofacitinib

Tofacitinib 13C D2 15N

Tofacitinib 13C D2 15N

CAS No. : NA

CAT No. : KMT136019

Formula : C1513CH18D2N515NO

FW : 316.4

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Tofacitinib 13C D3

Tofacitinib 13C D3

CAS No. : NA

CAT No. : KMT136020

Formula : C1513CH17D3N6O

FW : 316.4

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Tofacitinib 13C3

Tofacitinib 13C3

CAS No. : NA

CAT No. : KMT136021

Formula : C1313C3H22N6O

FW : 317.4

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Tofacitinib 13C3 15N

Tofacitinib 13C3 15N

CAS No. : NA

CAT No. : KMT136022

Formula : C1313C3H20N515NO

FW : 316.3

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Tofacitinib-d3 Citrate

Tofacitinib-d3 Citrate

CAS No. : NA

CAT No. : KMT136128

Formula : C16H17N6OD3 : C6H8O7

FW : 315.4 : 192.1

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(3S,4S)-Tofacitinib

(3S,4S)-Tofacitinib

CAS No. : 1092578-47-6

CAT No. : KMT136003

Formula : C16H20N6O

FW : 312.4

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(3S,4S)-Tofacitinib (Citrate salt)

(3S,4S)-Tofacitinib (Citrate salt)

CAS No. : 2174011-55-1

CAT No. : KMT136004

Formula : C16H20N6O : C6H8O7 

FW :  312.4 : 192.1

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1-Benzyl-4-Methylpiperidin-3-one

1-Benzyl-4-Methylpiperidin-3-one

CAS No. : 32018-96-5

CAT No. : KMT136005

Formula : C13H17NO

FW : 203.3

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5,6-Dihydro Tofacitinib

5,6-Dihydro Tofacitinib

CAS No. : 1640972-35-5

CAT No. : KMT136006

Formula : C16H22N6O

FW : 314.4

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Tofacitinib Acetyl Impurity

Tofacitinib Acetyl Impurity

CAS No. : 477600-76-3

CAT No. : KMT136024

Formula : C15H21N5O

FW : 287.4

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Tofacitinib Acid Impurity

Tofacitinib Acid Impurity

CAS No. : 2328165-36-0

CAT No. : KMT136025

Formula : C16H21N5O3

FW : 331.4

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Tofacitinib Amide Impurity

Tofacitinib Amide Impurity

CAS No. : 1675248-19-7

CAT No. : KMT136026

Formula : C16H22N6O2

FW : 330.4

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Tofacitinib Benzyl Impurity

Tofacitinib Benzyl Impurity

CAS No. : 477600-73-0

CAT No. : KMT136027

Formula : C20H25N5

FW : 335.5

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Tofacitinib Citrate

Tofacitinib Citrate

CAS No. : 540737-29-9

CAT No. : KMT136029

Formula : C16H20N6O : C6H8O7 

FW :  312.4 : 192.1

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Tofacitinib Formyl Impurity

Tofacitinib Formyl Impurity

CAS No. : 2227199-28-0

CAT No. : KMT136032

Formula : C14H19N5O

FW : 273.3

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Tofacitinib Impurity 10

Tofacitinib Impurity 10

CAS No. : 1640971-60-3

CAT No. : KMT136037

Formula : C14H20N6O

FW : 288.4

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Tofacitinib Impurity 24

Tofacitinib Impurity 24

CAS No. : 134965-85-8

CAT No. : KMT136051

Formula : C12H7ClN6

FW : 270.7

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Tofacitinib Impurity 4

Tofacitinib Impurity 4

CAS No. : 1675248-18-6

CAT No. : KMT136066

Formula : C18H25N5O3

FW : 359.4

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Tofacitinib Impurity 5

Tofacitinib Impurity 5

CAS No. : 1354621-59-2

CAT No. : KMT136076

Formula : C14H22N2

FW : 218.3

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Tofacitinib Impurity 56

Tofacitinib Impurity 56

CAS No. : 384337-90-0

CAT No. : KMT136083

Formula : C20H25N5

FW : 335.5

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Tofacitinib Impurity M

Tofacitinib Impurity M

CAS No. : 477600-74-1

CAT No. : KMT136101

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity Q

Tofacitinib Impurity Q

CAS No. : 3680-69-1

CAT No. : KMT136104

Formula : C6H4ClN3

FW : 153.6

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Tofacitinib Impurity R

Tofacitinib Impurity R

CAS No. : 479633-63-1

CAT No. : KMT136105

Formula : C13H10ClN3O2S

FW : 307.8

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Tofacitinib Impurity V

Tofacitinib Impurity V

CAS No. : 1616761-00-2

CAT No. : KMT136109

Formula : C16H19ClN6O

FW : 346.8

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Tofacitinib N-Oxide Impurity 1

Tofacitinib N-Oxide Impurity 1

CAS No. : 2028267-73-2

CAT No. : KMT136116

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Trans Impurity

Tofacitinib Trans Impurity

CAS No. : NA

CAT No. : KMT136127

Formula : C16H20N6O

FW : 312.4

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(3R,4S)-Tofacitinib

(3R,4S)-Tofacitinib

CAS No. : 1092578-46-5

CAT No. : KMT136001

Formula : C16H20N6O

FW : 312.4

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(3S,4R)-Tofacitinib

(3S,4R)-Tofacitinib

CAS No. : 1092578-48-7

CAT No. : KMT136002

Formula : C16H20N6O

FW : 312.4

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7-Deazapurine

7-Deazapurine

CAS No. : 271-70-5

CAT No. : KMT136007

Formula : C6H7N3

FW : 121.1

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N-Desmethyl Tofacitinib

N-Desmethyl Tofacitinib

CAS No. : 1527525-58-1

CAT No. : KMT136008

Formula : C15H18N6O

FW : 298.4

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N-Methyl Tofacitinib

N-Methyl Tofacitinib

CAS No. : NA

CAT No. : KMT136009

Formula : C17H22N6O

FW : 326.4

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Tofacitinib Butyl Ester

Tofacitinib Butyl Ester

CAS No. : 2716897-36-6

CAT No. : KMT136028

Formula : C23H31N7O3

FW : 453.5

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Tofacitinib Citrate Racemic Mixure

Tofacitinib Citrate Racemic Mixure

CAS No. : 2664002-63-3

CAT No. : KMT136030

Formula : C16H20N6O : C6H8O7

FW : 312.4 : 192.1

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Tofacitinib Enantiomeric Mixture

Tofacitinib Enantiomeric Mixture

CAS No. : NA

CAT No. : KMT136031

Formula : C16H20N6O

FW : 312.4

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Tofacitinib Hydroxy Impurity

Tofacitinib Hydroxy Impurity

CAS No. : NA

CAT No. : KMT136033

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3R,4S))

Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3R,4S))

CAS No. : 2459302-75-9

CAT No. : KMT136034

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3S,4R))

Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3S,4R))

CAS No. : 2378663-15-9

CAT No. : KMT136035

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity 1

Tofacitinib Impurity 1

CAS No. : 2504210-30-2

CAT No. : KMT136036

Formula : C16H22N6O2

FW : 330.4

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Tofacitinib Impurity 11

Tofacitinib Impurity 11

CAS No. : 2459302-80-6

CAT No. : KMT136038

Formula : C20H25N5

FW : 335.5

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Tofacitinib Impurity 12

Tofacitinib Impurity 12

CAS No. : 1092578-45-4

CAT No. : KMT136039

Formula : C20H25N5

FW : 335.5

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Tofacitinib Impurity 13

Tofacitinib Impurity 13

CAS No. : NA

CAT No. : KMT136040

Formula : C15H21N5O

FW : 287.4

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Tofacitinib Impurity 14

Tofacitinib Impurity 14

CAS No. : 2183519-70-0

CAT No. : KMT136041

Formula : C15H23N5

FW : 273.4

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Tofacitinib Impurity 15

Tofacitinib Impurity 15

CAS No. : 2056104-91-5

CAT No. : KMT136042

Formula : C27H31N5O2S

FW : 489.6

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Tofacitinib Impurity 16

Tofacitinib Impurity 16

CAS No. : 1092578-44-3

CAT No. : KMT136043

Formula : C27H31N5O2S

FW : 489.6

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Tofacitinib Impurity 17

Tofacitinib Impurity 17

CAS No. : 2259288-22-5

CAT No. : KMT136044

Formula : C23H26N6O3S

FW : 466.6

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Tofacitinib Impurity 18

Tofacitinib Impurity 18

CAS No. : 2640342-78-3

CAT No. : KMT136045

Formula : C13H21N5 : 2(HCl)

FW : 247.4 : 2(36.5)

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Tofacitinib Impurity 19

Tofacitinib Impurity 19

CAS No. : 2459302-82-8

CAT No. : KMT136046

Formula : C19H23N7O2

FW : 381.4

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Tofacitinib Impurity 2

Tofacitinib Impurity 2

CAS No. : 1640971-87-4

CAT No. : KMT136047

Formula : C10H17N3O : X(HCl)

FW : 195.3 : X(36.5)

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Tofacitinib Impurity 20

Tofacitinib Impurity 20

CAS No. : 2504210-33-5

CAT No. : KMT136048

Formula : C27H31N5OS

FW : 473.7

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Tofacitinib Impurity 22

Tofacitinib Impurity 22

CAS No. : NA

CAT No. : KMT136049

Formula : C13H18N4O2

FW : 262.3

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Tofacitinib Impurity 23

Tofacitinib Impurity 23

CAS No. : NA

CAT No. : KMT136050

Formula : C16H20N6O

FW : 312.4

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Tofacitinib Impurity 25

Tofacitinib Impurity 25

CAS No. : 1640971-51-2

CAT No. : KMT136052

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Impurity 26

Tofacitinib Impurity 26

CAS No. : 1206825-36-6

CAT No. : KMT136053

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity 27

Tofacitinib Impurity 27

CAS No. : NA

CAT No. : KMT136054

Formula : C23H34N6O3

FW : 442.6

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Tofacitinib Impurity 28

Tofacitinib Impurity 28

CAS No. : 2227199-31-5

CAT No. : KMT136055

Formula : C20H29N5O3

FW : 387.5

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Tofacitinib Impurity 29

Tofacitinib Impurity 29

CAS No. : 2459302-85-1

CAT No. : KMT136056

Formula : C21H27N7O3

FW : 425.5

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Tofacitinib Impurity 3

Tofacitinib Impurity 3

CAS No. : NA

CAT No. : KMT136057

Formula : C13H18N4O2

FW : 262.3

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Tofacitinib Impurity 30

Tofacitinib Impurity 30

CAS No. : 105-56-6

CAT No. : KMT136058

Formula : C5H7NO2

FW : 113.1

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Tofacitinib Impurity 31

Tofacitinib Impurity 31

CAS No. : 344418-61-7

CAT No. : KMT136059

Formula : C15H21N5O

FW : 287.4

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Tofacitinib Impurity 33

Tofacitinib Impurity 33

CAS No. : 16372-08-0

CAT No. : KMT136060

Formula : C6H6ClN3

FW : 155.6

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Tofacitinib Impurity 34

Tofacitinib Impurity 34

CAS No. : 1111638-10-8

CAT No. : KMT136061

Formula : C5H3ClN4

FW : 154.6

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Tofacitinib Impurity 35

Tofacitinib Impurity 35

CAS No. : 2101958-24-9

CAT No. : KMT136062

Formula : C16H22N6O3

FW : 346.4

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Tofacitinib Impurity 37

Tofacitinib Impurity 37

CAS No. : 773076-83-8

CAT No. : KMT136063

Formula : C9H15NO4

FW : 201.2

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Tofacitinib Impurity 38

Tofacitinib Impurity 38

CAS No. : NA

CAT No. : KMT136064

Formula : C14H20N6O

FW : 288.4

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Tofacitinib Impurity 39

Tofacitinib Impurity 39

CAS No. : NA

CAT No. : KMT136065

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Impurity 40

Tofacitinib Impurity 40

CAS No. : 477600-70-7

CAT No. : KMT136067

Formula : C14H22N2

FW : 218.3

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Tofacitinib Impurity 41

Tofacitinib Impurity 41

CAS No. : NA

CAT No. : KMT136068

Formula : C12H7ClN6O

FW : 286.7

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Tofacitinib Impurity 42

Tofacitinib Impurity 42

CAS No. : 90213-66-4

CAT No. : KMT136069

Formula : C6H3Cl2N3

FW : 188

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Tofacitinib Impurity 43

Tofacitinib Impurity 43

CAS No. : NA

CAT No. : KMT136070

Formula : C7H5Cl2N3O2S

FW : 266.1

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Tofacitinib Impurity 44

Tofacitinib Impurity 44

CAS No. : NA

CAT No. : KMT136071

Formula : C21H26ClN5O2S

FW : 448

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Tofacitinib Impurity 45

Tofacitinib Impurity 45

CAS No. : 923036-25-3

CAT No. : KMT136072

Formula : C20H24ClN5

FW : 369.9

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Tofacitinib Impurity 46

Tofacitinib Impurity 46

CAS No. : 2102039-99-4

CAT No. : KMT136073

Formula : C21H27N7O3

FW : 425.5

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Tofacitinib Impurity 48

Tofacitinib Impurity 48

CAS No. : NA

CAT No. : KMT136074

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Impurity 49

Tofacitinib Impurity 49

CAS No. : NA

CAT No. : KMT136075

Formula : C16H19ClN6O2

FW : 362.8

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Tofacitinib Impurity 50

Tofacitinib Impurity 50

CAS No. : 90953-01-8

CAT No. : KMT136077

Formula : C8H10N4

FW : 162.2

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Tofacitinib Impurity 51

Tofacitinib Impurity 51

CAS No. : 5817-96-9

CAT No. : KMT136078

Formula : C6H5N3O

FW : 135.1

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Tofacitinib Impurity 52

Tofacitinib Impurity 52

CAS No. : 2407039-29-4

CAT No. : KMT136079

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Impurity 53

Tofacitinib Impurity 53

CAS No. : NA

CAT No. : KMT136080

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Impurity 54

Tofacitinib Impurity 54

CAS No. : NA

CAT No. : KMT136081

Formula : C22H26N6O8

FW : 502.5

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Tofacitinib Impurity 55

Tofacitinib Impurity 55

CAS No. : 493040-20-3

CAT No. : KMT136082

Formula : C13H19NO : C7H14O3S

FW : 205.3 : 178.2

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Tofacitinib Impurity 57

Tofacitinib Impurity 57

CAS No. : 2315287-12-6

CAT No. : KMT136084

Formula : C32H40N12O2

FW : 624.8

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Tofacitinib Impurity 58

Tofacitinib Impurity 58

CAS No. : NA

CAT No. : KMT136085

Formula : C16H24N6O2

FW : 332.4

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Tofacitinib Impurity 59

Tofacitinib Impurity 59

CAS No. : 32018-56-7

CAT No. : KMT136086

Formula : C13H17N

FW : 187.3

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Tofacitinib Impurity 6

Tofacitinib Impurity 6

CAS No. : 1092578-43-2

CAT No. : KMT136087

Formula : C16H20N6O

FW : 312.4

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Tofacitinib Impurity 60

Tofacitinib Impurity 60

CAS No. : NA

CAT No. : KMT136088

Formula : C18H26N6O2

FW : 358.4

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Tofacitinib Impurity 62

Tofacitinib Impurity 62

CAS No. : NA

CAT No. : KMT136089

Formula : C16H22N6O4

FW : 362.4

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Tofacitinib Impurity 64

Tofacitinib Impurity 64

CAS No. : NA

CAT No. : KMT136090

Formula : C21H27N7O3

FW : 425.5

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Tofacitinib Impurity 65

Tofacitinib Impurity 65

CAS No. : NA

CAT No. : KMT136091

Formula : C32H40N12O2

FW : 624.8

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Tofacitinib Impurity 66

Tofacitinib Impurity 66

CAS No. : NA

CAT No. : KMT136092

Formula : C16H19ClN6O

FW : 346.8

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Tofacitinib Impurity 67

Tofacitinib Impurity 67

CAS No. : 2504210-38-0

CAT No. : KMT136093

Formula : C19H22N8

FW : 362.4

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Tofacitinib Impurity 68

Tofacitinib Impurity 68

CAS No. : NA

CAT No. : KMT136094

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity 7

Tofacitinib Impurity 7

CAS No. : 2504210-41-5

CAT No. : KMT136095

Formula : C29H38N10O2

FW : 558.7

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Tofacitinib Impurity 70

Tofacitinib Impurity 70

CAS No. : 2382711-65-9

CAT No. : KMT136096

Formula : C34H42N10O2

FW : 622.8

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Tofacitinib Impurity 8

Tofacitinib Impurity 8

CAS No. : 2459302-78-2

CAT No. : KMT136097

Formula : C34H45N7

FW : 551.8

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Tofacitinib Impurity 9

Tofacitinib Impurity 9

CAS No. : 2374700-39-5

CAT No. : KMT136098

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity I

Tofacitinib Impurity I

CAS No. : 1821769-41-8

CAT No. : KMT136099

Formula : C14H22N2 : 2(HCl)

FW : 218.3 : 2(36.5)

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Tofacitinib Impurity J

Tofacitinib Impurity J

CAS No. : NA

CAT No. : KMT136100

Formula : C14H22N2 : 2(HCl)

FW : 218.3 : 2(36.5)

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Tofacitinib Impurity N

Tofacitinib Impurity N

CAS No. : 1260614-73-0

CAT No. : KMT136102

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity P

Tofacitinib Impurity P

CAS No. : 1252883-90-1

CAT No. : KMT136103

Formula : C20H25N5

FW : 335.5

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Tofacitinib Impurity S

Tofacitinib Impurity S

CAS No. : 923036-30-0

CAT No. : KMT136106

Formula : C27H31N5O2S

FW : 489.6

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Tofacitinib Impurity T

Tofacitinib Impurity T

CAS No. : 2504210-31-3

CAT No. : KMT136107

Formula : C16H18N6O

FW : 310.4

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Tofacitinib Impurity U

Tofacitinib Impurity U

CAS No. : 1616760-97-4

CAT No. : KMT136108

Formula : C13H18ClN5

FW : 279.8

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Tofacitinib Impurity W

Tofacitinib Impurity W

CAS No. : 2504210-32-4

CAT No. : KMT136110

Formula : C13H18ClN5

FW : 279.8

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Tofacitinib Impurity X

Tofacitinib Impurity X

CAS No. : 2097982-05-1

CAT No. : KMT136111

Formula : C13H19N5

FW : 245.3

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Tofacitinib Impurity Y

Tofacitinib Impurity Y

CAS No. : 2227197-38-6

CAT No. : KMT136112

Formula : C14H21N5

FW : 259.4

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Tofacitinib Keto Impurity

Tofacitinib Keto Impurity

CAS No. : 1236267-27-8

CAT No. : KMT136113

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib N-Hydroxy Impurity

Tofacitinib N-Hydroxy Impurity

CAS No. : 2459302-76-0

CAT No. : KMT136115

Formula : C13H19N5O

FW : 261.3

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Tofacitinib N-Oxopropanenitrile

Tofacitinib N-Oxopropanenitrile

CAS No. : 2459302-77-1

CAT No. : KMT136122

Formula : C19H21N7O2

FW : 379.4

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Tofacitinib Related Impurity (PF-05579970)

Tofacitinib Related Impurity (PF-05579970)

CAS No. : NA

CAT No. : KMT136126

Formula : C15H21N5O

FW : 287.4

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Tofacitinib

Tofacitinib

CAS No. : 477600-75-2

CAT No. : KMT136018

Formula : C16H20N6O

FW : 312.4

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Tofacitinib 5 Oxo Impurity

Tofacitinib 5 Oxo Impurity

CAS No. : 2101951-20-4

CAT No. : KMT136023

Formula : C16H20N6O2

FW : 328.4

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Tofacitinib Lactum Impurity

Tofacitinib Lactum Impurity

CAS No. : NA

CAT No. : KMT136114

Formula : C15H18N6O2

FW : 314.3

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Tofacitinib N-Oxide Impurity 2

Tofacitinib N-Oxide Impurity 2

CAS No. : NA

CAT No. : KMT136117

Formula : C15H18N6O2

FW : 314.3

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Tofacitinib N-Oxide Impurity 3

Tofacitinib N-Oxide Impurity 3

CAS No. : NA

CAT No. : KMT136118

Formula : C15H18N6O2

FW : 314.3

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Tofacitinib N-Oxide Impurity 4

Tofacitinib N-Oxide Impurity 4

CAS No. : NA

CAT No. : KMT136119

Formula : C15H18N6O2

FW : 314.3

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N-Nitroso Tofacitinib Impurity

N-Nitroso Tofacitinib Impurity

CAS No. : NA

CAT No. : KMT136011

Formula : C13H18N6O

FW : 274.3

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N-Nitroso Tofacitinib Impurity 5

N-Nitroso Tofacitinib Impurity 5

CAS No. : NA

CAT No. : KMT136013

Formula : C14H21N3O

FW : 247.3

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N-Nitroso 5,6-Dihydro Tofacitinib

N-Nitroso 5,6-Dihydro Tofacitinib

CAS No. : NA

CAT No. : KMT136010

Formula : C16H21N7O2

FW : 343.4

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N-Nitroso Tofacitinib Impurity 6

N-Nitroso Tofacitinib Impurity 6

CAS No. : NA

CAT No. : KMT136014

Formula : C10H16N4O2

FW : 224.3

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N-Nitroso Tofacitinib Impurity 7

N-Nitroso Tofacitinib Impurity 7

CAS No. : NA

CAT No. : KMT136015

Formula : C7H15N3O

FW : 157.2

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N-Nitroso Tofacitinib Impurity 8

N-Nitroso Tofacitinib Impurity 8

CAS No. : NA

CAT No. : KMT136016

Formula : C7H15N3O

FW : 157.2

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N-Nitroso Tofacitinib Impurity 9

N-Nitroso Tofacitinib Impurity 9

CAS No. : NA

CAT No. : KMT136017

Formula : C7H14N4O2

FW : 186.2

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Tofacitinib N-Oxide Impurity 5

Tofacitinib N-Oxide Impurity 5

CAS No. : NA

CAT No. : KMT136120

Formula : C13H18N6O

FW : 274.3

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Tofacitinib N-Oxide Impurity 6

Tofacitinib N-Oxide Impurity 6

CAS No. : NA

CAT No. : KMT136121

Formula : C20H24N6O

FW : 364.5

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N-Nitroso Tofacitinib Impurity 2

N-Nitroso Tofacitinib Impurity 2

CAS No. : NA

CAT No. : KMT136012

Formula : C16H22N6O2

FW : 330.4

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Tofacitinib Nitroso Impurity 2

Tofacitinib Nitroso Impurity 2

CAS No. : NA

CAT No. : KMT136123

Formula : C15H17N7O2

FW : 327.3

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Tofacitinib Nitroso Impurity 3

Tofacitinib Nitroso Impurity 3

CAS No. : NA

CAT No. : KMT136124

Formula : C16H19N7O2

FW : 341.4

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Tofacitinib Nitroso Impurity 4

Tofacitinib Nitroso Impurity 4

CAS No. : NA

CAT No. : KMT136125

Formula : C17H20N6O2

FW : 340.4

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