Zanubrutinib and its Impurities
Zanubrutinib, sold under the brand name Brukinsa, is for the treatment of adult patients with mantle cell lymphoma (MCL) who have received at least one prior therapy. Reference standards of Zanubrutinib API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(S)-7-(1-Acryloylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-7-(1-Acryloylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391000
CAS :
NA
Molecular Formula : C27H28N6O4
Molecular Weight : 500.56


(S)-7-(1-(3-Chloropropanoyl)piperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-7-(1-(3-Chloropropanoyl)piperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391002
CAS :
1633351-79-7
Molecular Formula : C27H30ClN5O3
Molecular Weight : 508.02


(S)-7-(1-Acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile
(S)-7-(1-Acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile
Catalogue No.:PA 26 0391003
CAS :
2432022-47-2
Molecular Formula : C27H27N5O2
Molecular Weight : 453.55


3-(4-(3-Carbamoyl-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidin-1-yl)propanoic Acid
3-(4-(3-Carbamoyl-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidin-1-yl)propanoic Acid
Catalogue No.:PA 26 0391005
CAS :
NA
Molecular Formula : C27H31N5O4
Molecular Weight : 489.58


4-Acryloyl-7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
4-Acryloyl-7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391007
CAS :
NA
Molecular Formula : C30H31N5O4
Molecular Weight : 525.61


(S)-4-Nitroso-2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-4-Nitroso-2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391008
CAS :
NA
Molecular Formula : C24H26N6O3
Molecular Weight : 446.51


(S)-7-(1-Nitrosopiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-7-(1-Nitrosopiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391009
CAS :
NA
Molecular Formula : C24H26N6O3
Molecular Weight : 446.51


7-(1-(3-hydroxypropanoyl)piperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
7-(1-(3-Hydroxypropanoyl)piperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391010
CAS :
NA
Molecular Formula : C27H31N5O4
Molecular Weight : 489.58


7-(1-(3-hydroxypropanoyl)piperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-3-(4-(3-Carbamoyl-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidin-1-yl)propanoic Acid
Catalogue No.:PA 26 0391011
CAS :
NA
Molecular Formula : C27H31N5O4
Molecular Weight : 489.58


(S)-4-Acryloyl-7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-4-Acryloyl-7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391012
CAS :
NA
Molecular Formula : C30H31N5O4
Molecular Weight : 525.61


(S)-4-(3-(4-((R)-3-Carbamoyl-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidin-1-yl)propanoyl)-2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-4-(3-(4-((R)-3-Carbamoyl-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidin-1-yl)propanoyl)-2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391013
CAS :
NA
Molecular Formula : C51H56N10O5
Molecular Weight : 889.07


(R)-7-(1-Acryloylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(R)-7-(1-Acryloylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391014
CAS :
NA
Molecular Formula : C27H28N6O4
Molecular Weight : 500.56


(S)-7-(1-(3-Chloropropanoyl)piperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-7-(1-(3-Chloropropanoyl)piperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391015
CAS :
NA
Molecular Formula : C27H29ClN6O4
Molecular Weight : 537.02


(S)-4-Nitroso-2-(4-phenoxyphenyl)-7-(1-propionylpiperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-4-Nitroso-2-(4-phenoxyphenyl)-7-(1-propionylpiperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391016
CAS :
NA
Molecular Formula : C27H30N6O4
Molecular Weight : 502.58


(S)-7-(1-Benzoylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-7-(1-Benzoylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391017
CAS :
NA
Molecular Formula : C31H30N6O4
Molecular Weight : 550.62


(S)-3-(4-(3-Carbamoyl-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidin-1-yl)propanoic Acid
(S)-3-(4-(3-Carbamoyl-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidin-1-yl)propanoic Acid
Catalogue No.:PA 26 0391018
CAS :
NA
Molecular Formula : C27H30N6O5
Molecular Weight : 518.57


(S)-7-(1-Acetylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(S)-7-(1-Acetylpiperidin-4-yl)-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391019
CAS :
NA
Molecular Formula : C26H28N6O4
Molecular Weight : 488.55


(R)-4-Nitroso-2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
(R)-4-Nitroso-2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
Catalogue No.:PA 26 0391020
CAS :
NA
Molecular Formula : C24H26N6O3
Molecular Weight : 446.51


tert-Butyl 4-(3-carbamoyl-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidine-1-carboxylate
tert-Butyl 4-(3-carbamoyl-4-nitroso-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidine-1-carboxylate
Catalogue No.:PA 26 0391021
CAS :
NA
Molecular Formula : C29H34N6O5
Molecular Weight : 546.63


2-(4-Phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylic Acid
2-(4-Phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylic Acid
Catalogue No.:PA 26 0391022
CAS :
NA
Molecular Formula : C24H26N4O3
Molecular Weight : 418.5