Pharmaceutical Reference Standards / Impurity Standards

Tofacitinib
Tofacitinib Citrate
Tofacitinib Amine Impurity
Tofacitinib N-Oxide Impurity
Tofacitinib Impurity O
Tofacitinib Dihydro Impurity
Dihydro Tofacitinib Citrate
Tofacitinib Mixure of Diastereomers
(3S, 4S)-Tofacitinib
(3S,4S)-Tofacitinib citrate
Tofacitinib Related Compound 6
Tofacitinib Related Compound 11
Tofacitinib Related Compound 2 Hydrochloride
Tofacitinib Citrate Mixure of Diastereomers
Tofacitinib Impurity B
Tofacitinib Impurity A
1-Benzyl-4-methylpiperidin-3-one
Tofacitinib Impurity Q
Tofacitinib Impurity S
Tofacitinib Impurity N
Tofacitinib Acid Impurity
Tofacitinib Impurity L
Tofacitinb Impurity ((3R,4R)-1-Benzyl-n,4-dimethylpiperidin-3-amine dihydrochloride)
1,8-Diazabicyclo[5.4.0]undec-7-ene
Tofacitinib Impurity 42
(3R,4S)-1-benzyl-N,4-dimethylpiperidin-3-amine
(3S,4S)-1-Benzyl-n,4-dimethylpiperidin-3-amine dihydrochloride
2-Chloro-7h-pyrrolo[2,3-d]pyrimidine
Tofacitinib Impurity I
N-Methyl-N-[(3R,4R)-4-methyl-3-piperidinyl]-7H-Pyrrolo[2,3-d]pyrimidin-4-amine Hydrochloride
Hydroxy Tofacitinib
Tofacitinib Impurity K
Tofacitinib Impurity K
Tofacitinib Impurity 28
Tofacitinib Dicyanoacetyl Analog
Tofacitinib Related Compound 16
Tofacitinib Impurity 4
Tofacitinib Impurity L
Tofacitinib Impurity V
Tofacitinib Related Compound 29
Tofacitinib Impurity C Citrate
(3S,4R) TofacitinibCitrate
Tofacitinib impurity P
3-[(3R,4R)-4-methyl-3-[methyl({7H-pyrrolo[2,3,d]pyrimidin-4-yl})amino]piperidin-1-yl]-3-oxopropanenitrile-N-oxide
Tofacitinib (3S,4R/3R,4S)mixture of Isomer citarte salt
Tofacitinib RS/SR (mixture of isomers) citrate
Tofacitinib N-formyl Impurity
Tofacitinib acetyl impurity
Tofacitinib Related Substance 8
Tofacitinib Related Compound 23
4-Methoxy-7H-pyrrolo[2,3-d]pyrimidine
Pyrrolo[2,3-d]pyrimidin-4-ol
Tofacitinib Impurity Y
Methyl-3-{(3R,4R)-4-methyl-3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]piperidin-1-yl}-3-oxopropanoate
Tofacitinib Impurity 33
Tofacitinib Impurity 2
Tofacitinib N-Nitroso impurity
tofacitinib nitroso impurity
(3R,4S)-1-benzyl-N,4-di-methylpiperidin-3-amine dihydrochloride
Tofacitinib Impurity 51
Tofacitinib Impurity 50
Tofacitinib Impurity 47
Tofacitinib Nitroso Impurity 2
Tofacitinib Impurity A (citric acid)
3-[(3R,4R)-4-Methyl-3-[methyl(7H-4,7`-bipyrrolo[2,3-d]pyrimidin-4`-yl)amino]piperidin-1-yl]-3-oxopropanenitrile
N-nitroso-4-Methyl-3-methylaminopyridine
Tofacitinib Nitroso Impurity 1 Hydrochloride Salt
N-((3R,4R)-1-benzyl-4-methylpiperidin-3-yl)-N-methylnitrous amide
Tofacitinib Impurity 9
Tofacitinib Lactum Impurity
Tofacitinib Impurity R
N-methyl-N-((3R,4R)-4-methylpiperidin-3-yl)-7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-amine
4-Chloro-7-nitroso-7H-pyrrolo[2,3-d] pyrimidine
N-((3R,4R)-1-benzyl-4-methylpiperidin-3-yl)-N-methyl-7-nitroso-7H-pyrrolo[2,3-d] pyrimidin-4-amine
N-methyl-N-((3R,4R)-4-methylpiperidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-aminium
N-((3R,4R)-1-(3-amino-3-oxopropanoyl)-4-methylpiperidin-3-yl)-N-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-aminium
N-((3R,4R)-1-(2-cyanoacetyl)-4-methylpiperidin-3-yl)-N-methyl-6-oxo-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-aminium
1-Benzyl-4-methyl-3-(methylamino)pyridin-1-iumbromide
3-((3RS,4RS)-3-((7-hydroxy-7H-pyrrolo[2,3-d]pyrimidin-4-yl)(methyl)amino)-4-methylpiperidin-1-yl)-3-oxopropanenitrile
Tofacitinib Trans Impurity
Tofacitinib Intermediate
Tofacitinib Diastereomers
Tofacitinib Impurity 59
N-Methyl Tofacitinib

Isotope Labelled Compounds

Tofacitinib 13C3,15N
Tofacitinib-13C3
Tofacitinib-D3 Citrate