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Tofacitinib Pharmaceutical Reference Standards

(3R,4S)-​Tofacitinib citirate

TOFACITINIB IMPURITIES, IMPURITIES
(3R,4S)-​Tofacitinib citirate

CAT No. : CS-O-39729
Mol F. : C22H28N6O8
Mol W. : 504.49 g/mol
Cas No. : 2174011-53-9
Stock : Enquire
(3R,4S)-Tofacitinib

TOFACITINIB IMPURITIES, IMPURITIES
(3R,4S)-Tofacitinib

CAT No. : CS-T-62103
Mol F. : C₁₆H₂₀N₆O
Mol W. : 312.37 g/mol
Cas No. : 1092578-46-5
Stock : IN-Stock
(3R,4S)-Tofacitinib-D3

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
(3R,4S)-Tofacitinib-D3

CAT No. : CS-T-96145
Mol F. : C16H17D3N6O
Mol W. : 315.4 g/mol
Cas No. : 1092578-46-5 (Unlabelled)
Stock : Enquire
(3S,4R)-Tofacitinib

TOFACITINIB IMPURITIES, IMPURITIES
(3S,4R)-Tofacitinib

CAT No. : CS-T-62105
Mol F. : C₁₆H₂₀N₆O
Mol W. : 312.37 g/mol
Cas No. : 1092578-48-7
Stock : IN-Stock
(3S,4R)-Tofacitinib-d3

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
(3S,4R)-Tofacitinib-d3

CAT No. : CS-T-97135
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
(3S,4S)-Tofacitinib

TOFACITINIB IMPURITIES, IMPURITIES
(3S,4S)-Tofacitinib

CAT No. : CS-T-62104
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1092578-47-6
Stock : Enquire
(3S,4S)-Tofacitinib-d3

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
(3S,4S)-Tofacitinib-d3

CAT No. : CS-T-97136
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
1,2,3,6,-tetrahydro-1- nitroso4-picoline

TOFACITINIB IMPURITIES, IMPURITIES
1,2,3,6,-tetrahydro-1- nitroso4-picoline

CAT No. : CS-O-45591
Mol F. : C6H10N2O
Mol W. : 126.16 g/mol
Cas No. : 89600-66-8
Stock : Enquire
2-Descyano-2-ethyl Formyl-tofacitinib

TOFACITINIB FINE CHEMICALS, FINE CHEMICALS
2-Descyano-2-ethyl Formyl-tofacitinib

CAT No. : CS-ZH-31805
Mol F. : C₁₈H₂₅N₅O₃
Mol W. : 359.42 g/mol
Cas No. : 1675248-18-6
Stock : IN-Stock
3-((3R,4R)-4-methyl-3-(methyl((5R,6S)-2,5,6-trihydroxy-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)a

TOFACITINIB IMPURITIES, IMPURITIES
3-((3R,4R)-4-methyl-3-(methyl((5R,6S)-2,5,6-trihydroxy-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)a

CAT No. : CS-O-35885
Mol F. : C16H22N6O4
Mol W. : 362.68 g/mol
Cas No. : 2102039-98-3
Stock : Enquire
3-[(3R,4R)-4-methyl-3-[methyl({7H-pyrrolo[2,3-d]pyrimidin-4-yl})amino]piperidin-1-yl]-3-oxopropaneni

TOFACITINIB IMPURITIES, IMPURITIES
3-[(3R,4R)-4-methyl-3-[methyl({7H-pyrrolo[2,3-d]pyrimidin-4-yl})amino]piperidin-1-yl]-3-oxopropaneni

CAT No. : CS-O-36711
Mol F. : C16H20N6O3
Mol W. : 344.37 g/mol
Cas No. : Not Available
Stock : Enquire
N-(1-benzyl-4-methylpiperidin-3-yl)-N-methylnitrous amide

TOFACITINIB IMPURITIES, IMPURITIES
N-(1-benzyl-4-methylpiperidin-3-yl)-N-methylnitrous amide

CAT No. : CS-O-45589
Mol F. : C14H21N3O
Mol W. : 247.34 g/mol
Cas No. : Not Available
Stock : Enquire
N,4-dimethyl-1-nitrosopiperidin-3-amine

TOFACITINIB IMPURITIES, IMPURITIES
N,4-dimethyl-1-nitrosopiperidin-3-amine

CAT No. : CS-O-45597
Mol F. : C7H15N3O
Mol W. : 157.21 g/mol
Cas No. : Not Available
Stock : Enquire
N-methyl-N-(4-methyl-1-nitrosopiperidin-3-yl)nitrous amide

TOFACITINIB IMPURITIES, IMPURITIES
N-methyl-N-(4-methyl-1-nitrosopiperidin-3-yl)nitrous amide

CAT No. : CS-O-45598
Mol F. : C7H14N4O2
Mol W. : 186.21 g/mol
Cas No. : Not Available
Stock : Enquire
N-methyl-N-(4-methylpiperidin-3-yl)nitrous amide

TOFACITINIB IMPURITIES, IMPURITIES
N-methyl-N-(4-methylpiperidin-3-yl)nitrous amide

CAT No. : CS-O-45599
Mol F. : C7H15N3O
Mol W. : 157.21 g/mol
Cas No. : Not Available
Stock : Enquire
N-methyl-N-(4-methylpyridin-3-yl)nitrous amide

TOFACITINIB IMPURITIES, IMPURITIES
N-methyl-N-(4-methylpyridin-3-yl)nitrous amide

CAT No. : CS-O-46286
Mol F. : C7H9N3O
Mol W. : 151.17 g/mol
Cas No. : Not Available
Stock : Enquire
N-Nitroso Tofacitinib Amine Impurity

TOFACITINIB IMPURITIES, IMPURITIES
N-Nitroso Tofacitinib Amine Impurity

CAT No. : CS-O-40197
Mol F. : C₁₃H₁₈N₆O
Mol W. : 274.32 g/mol
Cas No. : Not Available
Stock : IN-Stock
N-Nitroso Tofacitinib Impurity 2

TOFACITINIB NITROSAMINE, NITROSAMINE
N-Nitroso Tofacitinib Impurity 2

CAT No. : CS-EO-02869
Mol F. : C16H22N6O2
Mol W. : 330.4 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib

TOFACITINIB API STANDARDS, API STANDARDS
Tofacitinib

CAT No. : CS-O-10853
Mol F. : C₁₆H₂₀N₆O
Mol W. : 312.37 g/mol
Cas No. : 477600-75-2
Stock : IN-Stock
Tofacitinib formyl impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib formyl impurity

CAT No. : CS-EO-01760
Mol F. : C₁₄H₁₉N₅O
Mol W. : 273.33 g/mol
Cas No. : 2227199-28-0
Stock : IN-Stock
Tofacitinib 13C

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib 13C

CAT No. : CS-O-48660
Mol F. : C₁₅¹³CH₂₀N₆O
Mol W. : 313.36 g/mol
Cas No. : 477600-75-2(Unlabelled)
Stock : IN-Stock
Tofacitinib 13C D2 15N

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib 13C D2 15N

CAT No. : CS-O-32721
Mol F. : C1513CH18D2N515NO
Mol W. : 316.37 g/mol
Cas No. : 477600-75-2 (Unlabeled)
Stock : Enquire
Tofacitinib 13C d3

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib 13C d3

CAT No. : CS-EO-02588
Mol F. : C1513CH17D3N6O
Mol W. : 316.4 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib 13C3

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib 13C3

CAT No. : CS-O-10298
Mol F. : C₁₃¹³C₃H₂₀N₆O
Mol W. : 315.35 g/mol
Cas No. : 477600-75-2(unlabeled)
Stock : IN-Stock
Tofacitinib 13C3 15N

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib 13C3 15N

CAT No. : CS-AI-00211
Mol F. : C13 13C3H20N5 15NO
Mol W. : 316.18 g/mol
Cas No. : 477600-75-2 (Unlabeled)
Stock : Enquire
Tofacitinib Amine intermediate

TOFACITINIB INTERMEDIATES, INTERMEDIATES
Tofacitinib Amine intermediate

CAT No. : CS-O-32365
Mol F. : C₁₃H₁₉N₅
Mol W. : 245.32 g/mol
Cas No. : 477600-74-1
Stock : IN-Stock
Tofacitinib Amine intermediate Dihydrochloride

TOFACITINIB INTERMEDIATES, INTERMEDIATES
Tofacitinib Amine intermediate Dihydrochloride

CAT No. : CS-BX-02592
Mol F. : C13H21Cl2N5
Mol W. : 318.25 g/mol
Cas No. : 1655430-59-3
Stock : Enquire
Tofacitinib butyl ester impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib butyl ester impurity

CAT No. : CS-O-43010
Mol F. : C23H31N7O3
Mol W. : 453.54 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib Citrate

TOFACITINIB API STANDARDS, API STANDARDS
Tofacitinib Citrate

CAT No. : CS-T-51291
Mol F. : C₂₂H₂₈N₆O₈
Mol W. : 504.49 g/mol
Cas No. : 540737-29-9
Stock : Enquire
Tofacitinib Citrate Diasteromeric impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Citrate Diasteromeric impurity

CAT No. : CS-O-46779
Mol F. : C22H28N6O8
Mol W. : 504.49 g/mol
Cas No. : 2664002-63-3
Stock : Enquire
Tofacitinib Citrate-d3

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib Citrate-d3

CAT No. : CS-EO-00265
Mol F. : C₂₂H₂₅D₃N₆O₈
Mol W. : 507.51 g/mol
Cas No. : 540737-29-9 (Unlabelled)
Stock : Enquire
Tofacitinib D3

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib D3

CAT No. : CS-O-36333
Mol F. : C16H17D3N6O
Mol W. : 315.39 g/mol
Cas No. : 477600-75-2 (Unlabeled)
Stock : Enquire
Tofacitinib Diastereomer

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Diastereomer

CAT No. : CS-EO-00128
Mol F. : C₂₂H₂₈N₆O₈
Mol W. : 504.49 g/mol
Cas No. : 344418-92-4 (Freebase)
Stock : IN-Stock
Tofacitinib Dihydro Citricacid salt impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Dihydro Citricacid salt impurity

CAT No. : CS-O-44098
Mol F. : C22H30N6O8
Mol W. : 506.51 g/mol
Cas No. : 1809002-40-1
Stock : Enquire
Tofacitinib Dihydro Impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Dihydro Impurity

CAT No. : CS-T-89311
Mol F. : C₁₆H₂₂N₆O
Mol W. : 314.39 g/mol
Cas No. : 1640972-35-5
Stock : IN-Stock
Tofacitinib Hydroxy Impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Hydroxy Impurity

CAT No. : CS-EO-02225
Mol F. : C16H20N6O2
Mol W. : 328.37 g/mol
Cas No. : 1092578-46-5
Stock : Enquire
Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3S,4R))

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

CAT No. : CS-EO-01834
Mol F. : C13H19N5
Mol W. : 245.3 g/mol
Cas No. : 2378663-15-9
Stock : Enquire
Tofacitinib Impurity 29

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Impurity 29

CAT No. : CS-EO-03056
Mol F. : C21H27N7O3
Mol W. : 425.5 g/mol
Cas No. : 2459302-85-1
Stock : Enquire
Tofacitinib Impurity 57

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Impurity 57

CAT No. : CS-EO-03055
Mol F. : C32H40N12O2
Mol W. : 624.8 g/mol
Cas No. : 2315287-12-6
Stock : Enquire
Tofacitinib Impurity 6

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Impurity 6

CAT No. : CS-EO-01450
Mol F. : C₁₉H₂₂N₈
Mol W. : 362.40 g/mol
Cas No. : 2504210-38-0
Stock : IN-Stock
Tofacitinib impurity C

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity C

CAT No. : CS-AQ-00034
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib impurity F

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity F

CAT No. : CS-AQ-00036
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib impurity G

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity G

CAT No. : CS-AQ-00037
Mol F. : C₁₄H₂₄Cl₂N₂
Mol W. : 291.26 g/mol
Cas No. : 1354486-07-9
Stock : IN-Stock
Tofacitinib impurity I

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity I

CAT No. : CS-AQ-00038
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib impurity J

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity J

CAT No. : CS-AQ-00039
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1431697-80-1
Stock : Enquire
Tofacitinib impurity K

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity K

CAT No. : CS-AQ-00040
Mol F. : C16H21N5O3
Mol W. : 331.4 g/mol
Cas No. : 2328165-36-0
Stock : Enquire
Tofacitinib impurity L

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity L

CAT No. : CS-AQ-00041
Mol F. : C₁₆H₂₂N₅O₂
Mol W. : 330.38 g/mol
Cas No. : 1675248-19-7
Stock : IN-Stock
Tofacitinib impurity N

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity N

CAT No. : CS-AQ-00042
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1260614-73-0
Stock : Enquire
Tofacitinib impurity P

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity P

CAT No. : CS-AQ-00044
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1252883-90-1
Stock : Enquire
Tofacitinib impurity T

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity T

CAT No. : CS-AQ-00046
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
TOFACITINIB IMPURITY TOF-IV

TOFACITINIB IMPURITIES, IMPURITIES
TOFACITINIB IMPURITY TOF-IV

CAT No. : CS-O-49452
Mol F. : C14H21N5
Mol W. : 259.35 g/mol
Cas No. : 2227197-38-6
Stock : Enquire
Tofacitinib impurity U

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity U

CAT No. : CS-AQ-00047
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib impurity V

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity V

CAT No. : CS-AQ-00048
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1616761-00-2
Stock : Enquire
Tofacitinib impurity W

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity W

CAT No. : CS-AQ-00049
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib impurity X

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity X

CAT No. : CS-AQ-00050
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib impurity Z

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib impurity Z

CAT No. : CS-AQ-00052
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 477600-76-3
Stock : Enquire
Tofacitinib intermeduate racemic

TOFACITINIB BUILDING BLOCKS, BUILDING BLOCKS
Tofacitinib intermeduate racemic

CAT No. : CS-O-44035
Mol F. : C14H24Cl2N2
Mol W. : 291.26 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib- Keto Impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib- Keto Impurity

CAT No. : CS-DN-00028
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib metabolite-1

TOFACITINIB METABOLITES, METABOLITES
Tofacitinib metabolite-1

CAT No. : CS-O-43355
Mol F. : C16H20N6O2
Mol W. : 328.38 g/mol
Cas No. : 1640971-51-2
Stock : Enquire
Tofacitinib N- acid Impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib N- acid Impurity

CAT No. : CS-DN-00027
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire
Tofacitinib N-hydroxy impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib N-hydroxy impurity

CAT No. : CS-EO-00807
Mol F. : C13H19N5O
Mol W. : 261.33 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib Nitroso Impurity

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Nitroso Impurity

CAT No. : CS-EO-01989
Mol F. : C16H19N7O2
Mol W. : 341.4 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib Nitroso Impurity 1

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Nitroso Impurity 1

CAT No. : CS-O-45592
Mol F. : C13H20N6O
Mol W. : 276.34 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib Nitroso Impurity 2

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Nitroso Impurity 2

CAT No. : CS-O-45593
Mol F. : C13H22N6O
Mol W. : 278.35 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib Nitroso Impurity 3

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Nitroso Impurity 3

CAT No. : CS-O-45594
Mol F. : C13H19N7O2
Mol W. : 305.34 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib Nitroso Impurity 4

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Nitroso Impurity 4

CAT No. : CS-O-45595
Mol F. : C14H20N6O
Mol W. : 288.35 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib Nitroso Impurity 5

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Nitroso Impurity 5

CAT No. : CS-O-45596
Mol F. : C14H22N6O
Mol W. : 290.36 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib N-Nitroso benzyl intermediate

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib N-Nitroso benzyl intermediate

CAT No. : CS-O-47117
Mol F. : C14H21N3O
Mol W. : 247.34 g/mol
Cas No. : Not Available
Stock : Enquire
Tofacitinib N-oxide

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib N-oxide

CAT No. : CS-T-89823
Mol F. : C16H20N6O2
Mol W. : 328.4 g/mol
Cas No. : 2028267-73-2
Stock : Enquire
Tofacitinib Related Compound 26 HCl

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Related Compound 26 HCl

CAT No. : CS-P-02224
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1206824-85-2
Stock : Enquire
Tofacitinib Related Compound 29

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib Related Compound 29

CAT No. : CS-EO-01845
Mol F. : C12H7ClN6
Mol W. : 270.7 g/mol
Cas No. : 134965-85-8
Stock : Enquire
Tofacitinib S,S Isomer

TOFACITINIB IMPURITIES, IMPURITIES
Tofacitinib S,S Isomer

CAT No. : CS-O-33661
Mol F. : C16H20N6O : C6H8O7
Mol W. : 312.4 : 192.1 g/mol
Cas No. : 2174011-55-1
Stock : Enquire
Tofacitinib-13C3,15N Citrate

TOFACITINIB STABLE ISOTOPES, STABLE ISOTOPES
Tofacitinib-13C3,15N Citrate

CAT No. : CS-O-47447
Mol F. : C₁₉¹³C₃H₂₈N₅¹⁵NO₈
Mol W. : 508.47 g/mol
Cas No. : 2256762-71-5 (Freebase)
Stock : IN-Stock