Tofacitinib Related Impurity (PF-05579970)

SZ CAT No:	SZ-T010052
CAS No	NA
Mol.F.	C15H21N5O
Mol.Wt.	287.4
Inv. Status	Custom Synthesis

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Chemical Name: 3-((3R,4R)-3-((4-Aminopyridin-2-yl)(methyl)amino)-4-methylpiperidin-1-yl)-3-oxopropanenitrile

Shipping Temperature: Ambient

HSN Code: 38229010

Country of Origin: India

Smiles: C[C@H]1[C@@H](N(C)C2=NC=CC(N)=C2)CN(C(CC#N)=O)CC1

Tofacitinib Related Impurity (PF-05579970) is chemically 3-((3R,4R)-3-((4-Aminopyridin-2-yl)(methyl)amino)-4-methylpiperidin-1-yl)-3-oxopropanenitrile. Tofacitinib Related Impurity (PF-05579970) is supplied with detailed characterization data compliant with regulatory guideline. Tofacitinib Related Impurity (PF-05579970) can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Tofacitinib.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.

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Tofacitinib-d3 Citrate

SZ CAT No:	: SZ-T010D01
CAS No	: NA
Mol.F.	: C16H17N6OD3 : C6H8O7
Mol.Wt.	: 315.4 : 192.1
Inv. Status	: Custom Synthesis

Tofacitinib Citrate

SZ CAT No:	: SZ-T010001
CAS No	: 540737-29-9
Mol.F.	: C16H20N6O : C6H8O7
Mol.Wt.	: 312.4 : 192.1
Inv. Status	: In Stock
Rel. CAS No	: 477600-75-2 (free base)

(3R,4S)-Tofacitinib

SZ CAT No:	: SZ-T010002
CAS No	: 1092578-46-5
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: Custom Synthesis
Rel. CAS No	: 2174011-53-9 (citrate salt)

(3S,4R)-Tofacitinib

SZ CAT No:	: SZ-T010003
CAS No	: 1092578-48-7
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: Custom Synthesis

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

SZ CAT No:	: SZ-T010004
CAS No	: 2174011-55-1
Mol.F.	: C16H20N6O : C6H8O7
Mol.Wt.	: 312.4 : 192.1
Inv. Status	: In Stock
Rel. CAS No	: 1092578-47-6 (free base)

Tofacitinib Impurity I

SZ CAT No:	: SZ-T010006
CAS No	: 1821769-41-8
Mol.F.	: C14H22N2 : 2(HCl)
Mol.Wt.	: 218.3 : 2(36.5)
Inv. Status	: Custom Synthesis
Rel. CAS No	: 1638499-33-8 (free base)

Tofacitinib Impurity J

SZ CAT No:	: SZ-T010007
CAS No	: NA
Mol.F.	: C14H22N2 : 2(HCl)
Mol.Wt.	: 218.3 : 2(36.5)
Inv. Status	: Custom Synthesis
Rel. CAS No	: 1638499-31-6 (free base) ; 2940866-11-3 (HCl salt)

Tofacitinib Acid Impurity

SZ CAT No:	: SZ-T010008
CAS No	: 2328165-36-0
Mol.F.	: C16H21N5O3
Mol.Wt.	: 331.4
Inv. Status	: In Stock

Tofacitinib Amide Impurity

SZ CAT No:	: SZ-T010009
CAS No	: 1675248-19-7
Mol.F.	: C16H22N6O2
Mol.Wt.	: 330.4
Inv. Status	: In Stock

Tofacitinib Impurity M

SZ CAT No:	: SZ-T010010
CAS No	: 477600-74-1
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: In Stock
Rel. CAS No	: 1260590-51-9 (HCl salt) : 1655430-59-3 (2HCl salt)

Tofacitinib Impurity N

SZ CAT No:	: SZ-T010011
CAS No	: 1260614-73-0
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: Custom Synthesis
Rel. CAS No	: 2803420-48-4 (2HCl salt)

Tofacitinib Benzyl Impurity

SZ CAT No:	: SZ-T010012
CAS No	: 477600-73-0
Mol.F.	: C20H25N5
Mol.Wt.	: 335.5
Inv. Status	: In Stock
Rel. CAS No	: 1702274-61-0 (XHCl salt)

Tofacitinib Impurity P

SZ CAT No:	: SZ-T010013
CAS No	: 1252883-90-1
Mol.F.	: C20H25N5
Mol.Wt.	: 335.5
Inv. Status	: Custom Synthesis

Tofacitinib Impurity Q

SZ CAT No:	: SZ-T010014
CAS No	: 3680-69-1
Mol.F.	: C6H4ClN3
Mol.Wt.	: 153.6
Inv. Status	: In Stock

Tofacitinib Impurity R

SZ CAT No:	: SZ-T010015
CAS No	: 479633-63-1
Mol.F.	: C13H10ClN3O2S
Mol.Wt.	: 307.8
Inv. Status	: In Stock

Tofacitinib Impurity S

SZ CAT No:	: SZ-T010016
CAS No	: 923036-30-0
Mol.F.	: C27H31N5O2S
Mol.Wt.	: 489.6
Inv. Status	: Custom Synthesis

Tofacitinib Impurity T

SZ CAT No:	: SZ-T010017
CAS No	: 2504210-31-3
Mol.F.	: C16H18N6O
Mol.Wt.	: 310.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity U

SZ CAT No:	: SZ-T010018
CAS No	: 1616760-97-4
Mol.F.	: C13H18ClN5
Mol.Wt.	: 279.8
Inv. Status	: Custom Synthesis

Tofacitinib Impurity V

SZ CAT No:	: SZ-T010019
CAS No	: 1616761-00-2
Mol.F.	: C16H19ClN6O
Mol.Wt.	: 346.8
Inv. Status	: In Stock

Tofacitinib Impurity W

SZ CAT No:	: SZ-T010020
CAS No	: 2504210-32-4
Mol.F.	: C13H18ClN5
Mol.Wt.	: 279.8
Inv. Status	: Custom Synthesis

Tofacitinib Impurity X

SZ CAT No:	: SZ-T010021
CAS No	: 2097982-05-1
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: Custom Synthesis

Tofacitinib Impurity Y

SZ CAT No:	: SZ-T010022
CAS No	: 2227197-38-6
Mol.F.	: C14H21N5
Mol.Wt.	: 259.4
Inv. Status	: Custom Synthesis
Rel. CAS No	: 2803376-19-2 (HCl salt)

Tofacitinib Acetyl Impurity

SZ CAT No:	: SZ-T010023
CAS No	: 477600-76-3
Mol.F.	: C15H21N5O
Mol.Wt.	: 287.4
Inv. Status	: In Stock

Tofacitinib Impurity 1

SZ CAT No:	: SZ-T010024
CAS No	: 2504210-30-2
Mol.F.	: C16H22N6O2
Mol.Wt.	: 330.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 2

SZ CAT No:	: SZ-T010025
CAS No	: 1640971-87-4
Mol.F.	: C10H17N3O : X(HCl)
Mol.Wt.	: 195.3 : X(36.5)
Inv. Status	: Custom Synthesis
Rel. CAS No	: 1629858-78-1 (free base)

Tofacitinib Impurity 3

SZ CAT No:	: SZ-T010026
CAS No	: NA
Mol.F.	: C13H18N4O2
Mol.Wt.	: 262.3
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 6

SZ CAT No:	: SZ-T010027
CAS No	: 1092578-43-2
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: Custom Synthesis

Tofacitinib N-Oxopropanenitrile

SZ CAT No:	: SZ-T010029
CAS No	: 2459302-77-1
Mol.F.	: C19H21N7O2
Mol.Wt.	: 379.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 7

SZ CAT No:	: SZ-T010031
CAS No	: 2504210-41-5
Mol.F.	: C29H38N10O2
Mol.Wt.	: 558.7
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 8

SZ CAT No:	: SZ-T010032
CAS No	: 2459302-78-2
Mol.F.	: C34H45N7
Mol.Wt.	: 551.8
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 9

SZ CAT No:	: SZ-T010033
CAS No	: 2374700-39-5
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 10

SZ CAT No:	: SZ-T010034
CAS No	: 1640971-60-3
Mol.F.	: C14H20N6O
Mol.Wt.	: 288.4
Inv. Status	: In Stock

Tofacitinib Impurity 11

SZ CAT No:	: SZ-T010035
CAS No	: 2459302-80-6
Mol.F.	: C20H25N5
Mol.Wt.	: 335.5
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 12

SZ CAT No:	: SZ-T010036
CAS No	: 1092578-45-4
Mol.F.	: C20H25N5
Mol.Wt.	: 335.5
Inv. Status	: Custom Synthesis

Tofacitinib Formyl Impurity

SZ CAT No:	: SZ-T010037
CAS No	: 2227199-28-0
Mol.F.	: C14H19N5O
Mol.Wt.	: 273.3
Inv. Status	: In Stock

Tofacitinib Impurity 13

SZ CAT No:	: SZ-T010038
CAS No	: NA
Mol.F.	: C15H21N5O
Mol.Wt.	: 287.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 14

SZ CAT No:	: SZ-T010039
CAS No	: 2183519-70-0
Mol.F.	: C15H23N5
Mol.Wt.	: 273.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 15

SZ CAT No:	: SZ-T010040
CAS No	: 2056104-91-5
Mol.F.	: C27H31N5O2S
Mol.Wt.	: 489.6
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 16

SZ CAT No:	: SZ-T010041
CAS No	: 1092578-44-3
Mol.F.	: C27H31N5O2S
Mol.Wt.	: 489.6
Inv. Status	: Custom Synthesis

Tofacitinib N-Oxide Impurity 1

SZ CAT No:	: SZ-T010042
CAS No	: 2028267-73-2
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: In Stock

Tofacitinib Impurity 17

SZ CAT No:	: SZ-T010043
CAS No	: 2259288-22-5
Mol.F.	: C23H26N6O3S
Mol.Wt.	: 466.6
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 18

SZ CAT No:	: SZ-T010046
CAS No	: 2640342-78-3
Mol.F.	: C13H21N5 : 2(HCl)
Mol.Wt.	: 247.4 : 2(36.5)
Inv. Status	: Custom Synthesis
Rel. CAS No	: 1812890-23-5 (free base)

Tofacitinib Impurity 19

SZ CAT No:	: SZ-T010047
CAS No	: 2459302-82-8
Mol.F.	: C19H23N7O2
Mol.Wt.	: 381.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 20

SZ CAT No:	: SZ-T010048
CAS No	: 2504210-33-5
Mol.F.	: C27H31N5OS
Mol.Wt.	: 473.7
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 22

SZ CAT No:	: SZ-T010050
CAS No	: NA
Mol.F.	: C13H18N4O2
Mol.Wt.	: 262.3
Inv. Status	: Custom Synthesis

Tofacitinib Related Impurity (PF-05579970)

SZ CAT No:	: SZ-T010052
CAS No	: NA
Mol.F.	: C15H21N5O
Mol.Wt.	: 287.4
Inv. Status	: Custom Synthesis

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

SZ CAT No:	: SZ-T010054
CAS No	: 2378663-15-9
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: Custom Synthesis

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

SZ CAT No:	: SZ-T010055
CAS No	: 2459302-75-9
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: Custom Synthesis

Tofacitinib N-Hydroxy Impurity

SZ CAT No:	: SZ-T010056
CAS No	: 2459302-76-0
Mol.F.	: C13H19N5O
Mol.Wt.	: 261.3
Inv. Status	: Custom Synthesis

1-Benzyl-4-Methylpiperidin-3-one

SZ CAT No:	: SZ-T010057
CAS No	: 32018-96-5
Mol.F.	: C13H17NO
Mol.Wt.	: 203.3
Inv. Status	: In Stock

Tofacitinib Impurity 24

SZ CAT No:	: SZ-T010058
CAS No	: 134965-85-8
Mol.F.	: C12H7ClN6
Mol.Wt.	: 270.7
Inv. Status	: In Stock

Tofacitinib Keto Impurity

SZ CAT No:	: SZ-T010060
CAS No	: 1236267-27-8
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 25

SZ CAT No:	: SZ-T010061
CAS No	: 1640971-51-2
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 26

SZ CAT No:	: SZ-T010062
CAS No	: 1206825-36-6
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 35

SZ CAT No:	: SZ-T010064
CAS No	: 2101958-24-9
Mol.F.	: C16H22N6O3
Mol.Wt.	: 346.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 59

SZ CAT No:	: SZ-T010065
CAS No	: 2101951-13-5
Mol.F.	: C16H22N6O3
Mol.Wt.	: 346.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 60

SZ CAT No:	: SZ-T010066
CAS No	: NA
Mol.F.	: C18H26N6O2
Mol.Wt.	: 358.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 62

SZ CAT No:	: SZ-T010068
CAS No	: NA
Mol.F.	: C16H22N6O4
Mol.Wt.	: 362.4
Inv. Status	: Custom Synthesis

5,6-Dihydro Tofacitinib

SZ CAT No:	: SZ-T010069
CAS No	: 1640972-35-5
Mol.F.	: C16H22N6O
Mol.Wt.	: 314.4
Inv. Status	: In Stock
Rel. CAS No	: 1809002-40-1 (citrate salt)

Tofacitinib 5 Oxo Impurity

SZ CAT No:	: SZ-T010070
CAS No	: 2101951-20-4
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Under Synthesis

Tofacitinib Impurity 64

SZ CAT No:	: SZ-T010071
CAS No	: NA
Mol.F.	: C21H27N7O3
Mol.Wt.	: 425.5
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 65

SZ CAT No:	: SZ-T010072
CAS No	: NA
Mol.F.	: C32H40N12O2
Mol.Wt.	: 624.8
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 66

SZ CAT No:	: SZ-T010073
CAS No	: NA
Mol.F.	: C16H19ClN6O
Mol.Wt.	: 346.8
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 4

SZ CAT No:	: SZ-T010074
CAS No	: 1675248-18-6
Mol.F.	: C18H25N5O3
Mol.Wt.	: 359.4
Inv. Status	: In Stock

Tofacitinib Impurity 67

SZ CAT No:	: SZ-T010076
CAS No	: 2504210-38-0
Mol.F.	: C19H22N8
Mol.Wt.	: 362.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 68

SZ CAT No:	: SZ-T010077
CAS No	: NA
Mol.F.	: C13H19N5
Mol.Wt.	: 245.3
Inv. Status	: Custom Synthesis

N-Desmethyl Tofacitinib

SZ CAT No:	: SZ-T010078
CAS No	: 1527525-58-1
Mol.F.	: C15H18N6O
Mol.Wt.	: 298.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 70

SZ CAT No:	: SZ-T010079
CAS No	: 2382711-65-9
Mol.F.	: C34H42N10O2
Mol.Wt.	: 622.8
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 27

SZ CAT No:	: SZ-T010080
CAS No	: NA
Mol.F.	: C23H34N6O3
Mol.Wt.	: 442.6
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 28

SZ CAT No:	: SZ-T010081
CAS No	: 2227199-31-5
Mol.F.	: C20H29N5O3
Mol.Wt.	: 387.5
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 29

SZ CAT No:	: SZ-T010082
CAS No	: 2459302-85-1
Mol.F.	: C21H27N7O3
Mol.Wt.	: 425.5
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 30

SZ CAT No:	: SZ-T010083
CAS No	: 105-56-6
Mol.F.	: C5H7NO2
Mol.Wt.	: 113.1
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 31

SZ CAT No:	: SZ-T010084
CAS No	: 344418-61-7
Mol.F.	: C15H21N5O
Mol.Wt.	: 287.4
Inv. Status	: Custom Synthesis

7-Deazapurine

SZ CAT No:	: SZ-T010086
CAS No	: 271-70-5
Mol.F.	: C6H7N3
Mol.Wt.	: 121.1
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 33

SZ CAT No:	: SZ-T010087
CAS No	: 16372-08-0
Mol.F.	: C6H6ClN3
Mol.Wt.	: 155.6
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 34

SZ CAT No:	: SZ-T010088
CAS No	: 1111638-10-8
Mol.F.	: C5H3ClN4
Mol.Wt.	: 154.6
Inv. Status	: Custom Synthesis

(3S,4S)-Tofacitinib

SZ CAT No:	: SZ-T010089
CAS No	: 1092578-47-6
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: In Stock
Rel. CAS No	: 2174011-55-1 (citrate salt)

Tofacitinib Impurity 5

SZ CAT No:	: SZ-T010075
CAS No	: 1354621-59-2
Mol.F.	: C14H22N2
Mol.Wt.	: 218.3
Inv. Status	: In Stock

Tofacitinib Hydroxy Impurity

SZ CAT No:	: SZ-T010090
CAS No	: NA
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Custom Synthesis

Tofacitinib Enantiomeric Mixture

SZ CAT No:	: SZ-T010093
CAS No	: NA
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 23

SZ CAT No:	: SZ-T010051
CAS No	: NA
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: Custom Synthesis

Tofacitinib 13C3 15N

SZ CAT No:	: SZ-T010D02
CAS No	: NA
Mol.F.	: C1313C3H20N515NO
Mol.Wt.	: 316.3
Inv. Status	: Custom Synthesis

Tofacitinib Citrate Racemic Mixure

SZ CAT No:	: SZ-T010094
CAS No	: 2664002-63-3
Mol.F.	: C16H20N6O : C6H8O7
Mol.Wt.	: 312.4 : 192.1
Inv. Status	: Custom Synthesis
Rel. CAS No	: 344418-92-4 (free base)

Tofacitinib

SZ CAT No:	: SZ-T010095
CAS No	: 477600-75-2
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: In Stock
Rel. CAS No	: 540737-29-9 (citrate salt)

Tofacitinib 13C D3

SZ CAT No:	: SZ-T010D03
CAS No	: NA
Mol.F.	: C1513CH17D3N6O
Mol.Wt.	: 316.4
Inv. Status	: Custom Synthesis

Tofacitinib Trans Impurity

SZ CAT No:	: SZ-T010096
CAS No	: NA
Mol.F.	: C16H20N6O
Mol.Wt.	: 312.4
Inv. Status	: In Stock

N-Nitroso Tofacitinib Impurity

SZ CAT No:	: SZ-T010097
CAS No	: NA
Mol.F.	: C13H18N6O
Mol.Wt.	: 274.3
Inv. Status	: In Stock

Tofacitinib Impurity 37

SZ CAT No:	: SZ-T010098
CAS No	: 773076-83-8
Mol.F.	: C9H15NO4
Mol.Wt.	: 201.2
Inv. Status	: Custom Synthesis

N-Nitroso Tofacitinib Impurity 2

SZ CAT No:	: SZ-T010100
CAS No	: NA
Mol.F.	: C16H22N6O2
Mol.Wt.	: 330.4
Inv. Status	: Inquire

Tofacitinib Impurity 38

SZ CAT No:	: SZ-T010101
CAS No	: NA
Mol.F.	: C14H20N6O
Mol.Wt.	: 288.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 39

SZ CAT No:	: SZ-T010102
CAS No	: NA
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Custom Synthesis

Tofacitinib 13C3

SZ CAT No:	: SZ-T010D04
CAS No	: NA
Mol.F.	: C1313C3H22N6O
Mol.Wt.	: 317.4
Inv. Status	: Custom Synthesis

Tofacitinib Nitroso Impurity 2

SZ CAT No:	: SZ-T010103
CAS No	: NA
Mol.F.	: C15H17N7O2
Mol.Wt.	: 327.3
Inv. Status	: Inquire

Tofacitinib Nitroso Impurity 3

SZ CAT No:	: SZ-T010104
CAS No	: NA
Mol.F.	: C16H19N7O2
Mol.Wt.	: 341.4
Inv. Status	: Inquire

Tofacitinib Impurity 40

SZ CAT No:	: SZ-T010105
CAS No	: 477600-70-7
Mol.F.	: C14H22N2
Mol.Wt.	: 218.3
Inv. Status	: Custom Synthesis
Rel. CAS No	: 1820713-38-9 (HCl salt) ; 1062580-52-2 (dihydrochloride)

Tofacitinib Impurity 41

SZ CAT No:	: SZ-T010106
CAS No	: NA
Mol.F.	: C12H7ClN6O
Mol.Wt.	: 286.7
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 42

SZ CAT No:	: SZ-T010107
CAS No	: 90213-66-4
Mol.F.	: C6H3Cl2N3
Mol.Wt.	: 188
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 43

SZ CAT No:	: SZ-T010108
CAS No	: NA
Mol.F.	: C7H5Cl2N3O2S
Mol.Wt.	: 266.1
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 44

SZ CAT No:	: SZ-T010109
CAS No	: NA
Mol.F.	: C21H26ClN5O2S
Mol.Wt.	: 448
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 45

SZ CAT No:	: SZ-T010110
CAS No	: 923036-25-3
Mol.F.	: C20H24ClN5
Mol.Wt.	: 369.9
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 46

SZ CAT No:	: SZ-T010111
CAS No	: 2102039-99-4
Mol.F.	: C21H27N7O3
Mol.Wt.	: 425.5
Inv. Status	: Custom Synthesis

Tofacitinib Butyl Ester

SZ CAT No:	: SZ-T010112
CAS No	: 2716897-36-6
Mol.F.	: C23H31N7O3
Mol.Wt.	: 453.5
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 48

SZ CAT No:	: SZ-T010113
CAS No	: NA
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 49

SZ CAT No:	: SZ-T010114
CAS No	: NA
Mol.F.	: C16H19ClN6O2
Mol.Wt.	: 362.8
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 50

SZ CAT No:	: SZ-T010115
CAS No	: 90953-01-8
Mol.F.	: C8H10N4
Mol.Wt.	: 162.2
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 51

SZ CAT No:	: SZ-T010116
CAS No	: 5817-96-9
Mol.F.	: C6H5N3O
Mol.Wt.	: 135.1
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 52

SZ CAT No:	: SZ-T010117
CAS No	: 2407039-29-4
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 53

SZ CAT No:	: SZ-T010118
CAS No	: NA
Mol.F.	: C16H20N6O2
Mol.Wt.	: 328.4
Inv. Status	: Custom Synthesis

Tofacitinib Impurity 54

SZ CAT No:	: SZ-T010119
CAS No	: NA
Mol.F.	: C22H26N6O8
Mol.Wt.	: 502.5
Inv. Status	: Custom Synthesis

Tofacitinib Related Impurity (PF-05579970)

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