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Ritlecitinib and its Impurities

Ritlecitinib is a small molecule, being developed by Pfizer, for the oral treatment of ulcerative colitis, alopecia areata, vitiligo, and Crohn's disease. Reference standards of Ritlecitinib API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 28 results for Ritlecitinib Impurities
PA 18 1470000

Ritlecitinib

Ritlecitinib

  • Catalogue No.:PA 18 1470000

  • CAS :

    1792180-81-4

  • Molecular Formula : C15H19N5O

  • Molecular Weight : 285.35

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PA 18 1471000

Benzyl (2S,5S)-5-amino-2-methylpiperidine-1-carboxylate

Benzyl (2S,5S)-5-amino-2-methylpiperidine-1-carboxylate

  • Catalogue No.:PA 18 1471000

  • CAS :

    1290191-79-5

  • Molecular Formula : C14H20N2O2

  • Molecular Weight : 248.33

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PA 18 1471001

Benzyl (2R,5S)-5-amino-2-methylpiperidine-1-carboxylate

Benzyl (2R,5S)-5-amino-2-methylpiperidine-1-carboxylate

  • Catalogue No.:PA 18 1471001

  • CAS :

    1290191-65-9

  • Molecular Formula : C14H20N2O2

  • Molecular Weight : 248.33

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PA 18 1471002

1-((2S,5R)-5-((1-(3-((2S,5R)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)-3-oxopropyl)-1H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

1-((2S,5R)-5-((1-(3-((2S,5R)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)-3-oxopropyl)-1H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

  • Catalogue No.:PA 18 1471002

  • CAS :

    NA

  • Molecular Formula : C30H38N10O2

  • Molecular Weight : 570.7

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PA 18 1471003

1-((2S,5S)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

1-((2S,5S)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

  • Catalogue No.:PA 18 1471003

  • CAS :

    1792181-97-5

  • Molecular Formula : C15H19N5O

  • Molecular Weight : 285.35

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PA 18 1471004

1-((2R,5S)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

1-((2R,5S)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

  • Catalogue No.:PA 18 1471004

  • CAS :

    1792180-79-0

  • Molecular Formula : C15H19N5O

  • Molecular Weight : 285.35

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PA 18 1471005

1-((2R,5R)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

1-((2R,5R)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

  • Catalogue No.:PA 18 1471005

  • CAS :

    1792181-98-6

  • Molecular Formula : C15H19N5O

  • Molecular Weight : 285.35

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PA 18 1471006

Ritlecitinib Dimer Impurity

Ritlecitinib Dimer Impurity

  • Catalogue No.:PA 18 1471006

  • CAS :

    2374827-88-8

  • Molecular Formula : C30H38N10O2

  • Molecular Weight : 570.7

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PA 18 1471007

Ritlecitinib Des Methyl Vinyl ketone Impurity

Ritlecitinib Des Methyl Vinyl ketone Impurity

  • Catalogue No.:PA 18 1471007

  • CAS :

    2042650-70-2

  • Molecular Formula : C12H17N5

  • Molecular Weight : 231.3

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PA 18 1471008

Benzyl (2R,5S)-5-((2,2'-dichloro-7H-[4,7'-bipyrrolo[2,3-d]pyrimidin]-4'-yl)amino)-2-methylpiperidine-1-carboxylate

Benzyl (2R,5S)-5-((2,2'-dichloro-7H-[4,7'-bipyrrolo[2,3-d]pyrimidin]-4'-yl)amino)-2-methylpiperidine-1-carboxylate

  • Catalogue No.:PA 18 1471008

  • CAS :

    NA

  • Molecular Formula : C26H24Cl2N8O2

  • Molecular Weight : 551.43

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PA 18 1471009

N-((3S,6R)-6-Methylpiperidin-3-yl)-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-amine

N-((3S,6R)-6-Methylpiperidin-3-yl)-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-amine

  • Catalogue No.:PA 18 1471009

  • CAS :

    NA

  • Molecular Formula : C12H19N5

  • Molecular Weight : 233.32

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PA 18 1471010

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

  • Catalogue No.:PA 18 1471010

  • CAS :

    NA

  • Molecular Formula : C18H20N8

  • Molecular Weight : 348.41

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PA 18 1471011

(2S,5R)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidine-1-carbaldehyde

(2S,5R)-5-((7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidine-1-carbaldehyde

  • Catalogue No.:PA 18 1471011

  • CAS :

    NA

  • Molecular Formula : C13H17N5O

  • Molecular Weight : 259.31

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PA 18 1471012

1-((2S,5R)-5-((6,7-Dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

1-((2S,5R)-5-((6,7-Dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

  • Catalogue No.:PA 18 1471012

  • CAS :

    NA

  • Molecular Formula : C15H21N5O

  • Molecular Weight : 287.37

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PA 18 1471013

1-((2S,5R)-5-(bis(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

1-((2S,5R)-5-(bis(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one

  • Catalogue No.:PA 18 1471013

  • CAS :

    NA

  • Molecular Formula : C21H22N8O

  • Molecular Weight : 402.46

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PA 18 1471014

tert-Butyl ((3R,6S)-6-methyl-1-nitrosopiperidin-3-yl)carbamate

tert-Butyl ((3R,6S)-6-methyl-1-nitrosopiperidin-3-yl)carbamate

  • Catalogue No.:PA 18 1471014

  • CAS :

    NA

  • Molecular Formula : C11H21N3O3

  • Molecular Weight : 243.31

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PA 18 1471015

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-7-tosyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-7-tosyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine

  • Catalogue No.:PA 18 1471015

  • CAS :

    NA

  • Molecular Formula : C19H22N6O3S

  • Molecular Weight : 414.48

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PA 18 1471016

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7-tosyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7-tosyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471016

  • CAS :

    NA

  • Molecular Formula : C19H22N6O3S

  • Molecular Weight : 414.48

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PA 18 1471017

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-N-(7-tosyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-N-(7-tosyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471017

  • CAS :

    NA

  • Molecular Formula : C19H21N7O4S

  • Molecular Weight : 443.48

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PA 18 1471018

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

  • Catalogue No.:PA 18 1471018

  • CAS :

    NA

  • Molecular Formula : C12H16N6O

  • Molecular Weight : 260.30

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PA 18 1471019

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471019

  • CAS :

    NA

  • Molecular Formula : C12H16N6O

  • Molecular Weight : 260.30

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PA 18 1471020

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471020

  • CAS :

    NA

  • Molecular Formula : C12H15N7O2

  • Molecular Weight : 289.30

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PA 18 1471021

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-N-(7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-N-(7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471021

  • CAS :

    NA

  • Molecular Formula : C12H14N8O3

  • Molecular Weight : 318.30

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PA 18 1471022

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-6-Methylpiperidin-3-yl)-N-(7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471022

  • CAS :

    NA

  • Molecular Formula : C12H15N7O2

  • Molecular Weight : 289.30

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PA 18 1471023

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-amine

N-((3R,6S)-6-Methyl-1-nitrosopiperidin-3-yl)-7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-amine

  • Catalogue No.:PA 18 1471023

  • CAS :

    NA

  • Molecular Formula : C12H15N7O2

  • Molecular Weight : 289.30

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PA 18 1471024

N-((3R,6S)-1-Acryloyl-6-methylpiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-1-Acryloyl-6-methylpiperidin-3-yl)-N-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471024

  • CAS :

    NA

  • Molecular Formula : C15H18N6O2

  • Molecular Weight : 314.35

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PA 18 1471025

1-((2S,5R)-2-Methyl-5-((7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)prop-2-en-1-one

1-((2S,5R)-2-Methyl-5-((7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)prop-2-en-1-one

  • Catalogue No.:PA 18 1471025

  • CAS :

    NA

  • Molecular Formula : C15H18N6O2

  • Molecular Weight : 314.35

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PA 18 1471026

N-((3R,6S)-1-Acryloyl-6-methylpiperidin-3-yl)-N-(7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

N-((3R,6S)-1-Acryloyl-6-methylpiperidin-3-yl)-N-(7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)nitrous amide

  • Catalogue No.:PA 18 1471026

  • CAS :

    NA

  • Molecular Formula : C15H17N7O3

  • Molecular Weight : 343.35

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