varenicline and its Impurities
Varenicline is used to treat smoking addiction. This medication is the first approved nicotinic receptor partial agonist. It is a prescription medication. Varenicline trade name is Chantix and Champix.Reference standards of Varenicline API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


1-((1S,5R)-7-Amino-8-nitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-((1S,5R)-7-Amino-8-nitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 18620
CAS :
NA
Molecular Formula : C13H12F3N3O3
Molecular Weight : 315.25


1-(6,8-Dinitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-(6,8-Dinitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 18680
CAS :
853946-18-6
Molecular Formula : C13H10F3N3O5
Molecular Weight : 345.23


2,2,2-Trifluoro-1-(7-nitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)ethan-1-one
2,2,2-Trifluoro-1-(7-nitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)ethan-1-one
Catalogue No.:PA 22 18690
CAS :
230615-53-9
Molecular Formula : C13H11F3N2O3
Molecular Weight : 300.24


1-(6,8-Diamino-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-(6,8-Diamino-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 18700
CAS :
NA
Molecular Formula : C13H14F3N3O
Molecular Weight : 285.27


1-(7-Amino-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-(7-Amino-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 0181007
CAS :
230615-56-2
Molecular Formula : C13H13F3N2O
Molecular Weight : 270.26


2,2,2-Trifluoro-1-(5,6,8,9-tetrahydro-5,9-ethanoimidazo[4',5':4,5]benzo[1,2-d]azepin-7(1H)-yl)ethan-1-one
2,2,2-Trifluoro-1-(5,6,8,9-tetrahydro-5,9-ethanoimidazo[4',5':4,5]benzo[1,2-d]azepin-7(1H)-yl)ethan-1-one
Catalogue No.:PA 22 0181011
CAS :
832089-32-4
Molecular Formula : C15H14F3N3O
Molecular Weight : 309.29


2,2,2-Trifluoro-1-(5,6,8,9-tetrahydro-5,9-methanoimidazo[4',5':4,5]benzo[1,2-d]azepin-7(1H)-yl)ethan-1-one
2,2,2-Trifluoro-1-(5,6,8,9-tetrahydro-5,9-methanoimidazo[4',5':4,5]benzo[1,2-d]azepin-7(1H)-yl)ethan-1-one
Catalogue No.:PA 22 0181012
CAS :
2759288-58-7
Molecular Formula : C14H12F3N3O
Molecular Weight : 295.27


2-Hydroxy-2-((6R,10S)-6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)acetaldehyde
2-Hydroxy-2-((6R,10S)-6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)acetaldehyde
Catalogue No.:PA 22 0181017
CAS :
NA
Molecular Formula : C15H15N3O2
Molecular Weight : 269.3


1-((1S,5R)-7-Amino-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-((1S,5R)-7-Amino-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 0181018
CAS :
NA
Molecular Formula : C13H13F3N2O
Molecular Weight : 270.26


1-(1,3-Dinitro-6,7,8,9-tetrahydro-5H-5,9-methanobenzo[7]annulen-7-yl)-2,2,2-trifluoroethan-1-one
1-(1,3-Dinitro-6,7,8,9-tetrahydro-5H-5,9-methanobenzo[7]annulen-7-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 0181022
CAS :
NA
Molecular Formula : C14H11F3N2O5
Molecular Weight : 344.25


1,2-bis((6R,10S)-6,7,9,10-Tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)ethan-1-one
1,2-bis((6R,10S)-6,7,9,10-Tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)ethan-1-one
Catalogue No.:PA 22 0181023
CAS :
2306217-16-1
Molecular Formula : C28H26N6O
Molecular Weight : 462.56


2,3-Dihydroxy-4-oxo-4-(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)butanoic acid
2,3-Dihydroxy-4-oxo-4-(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)butanoic acid
Catalogue No.:PA 22 0181026
CAS :
2306217-15-0
Molecular Formula : C17H17N3O5
Molecular Weight : 343.34


1-(7,8-Dinitroso-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-(7,8-Dinitroso-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 0181043
CAS :
NA
Molecular Formula : C13H10F3N3O3
Molecular Weight : 313.24


1-(7,8-bis(Hydroxyamino)-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-(7,8-bis(Hydroxyamino)-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 0181042
CAS :
NA
Molecular Formula : C13H14F3N3O3
Molecular Weight : 317.27


2,2,2-Trifluoro-1-(7-(hydroxyamino)-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)ethan-1-one
2,2,2-Trifluoro-1-(7-(hydroxyamino)-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)ethan-1-one
Catalogue No.:PA 22 0181041
CAS :
NA
Molecular Formula : C13H13F3N2O2
Molecular Weight : 286.25


(3R,4S,5S,6R)-2-(((2R,3S,4R,5R,6R)-4,5-Dihydroxy-2-(hydroxymethyl)-6-(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
(3R,4S,5S,6R)-2-(((2R,3S,4R,5R,6R)-4,5-Dihydroxy-2-(hydroxymethyl)-6-(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
Catalogue No.:PA 22 0181045
CAS :
NA
Molecular Formula : C25H33N3O10
Molecular Weight : 535.55


2-((2-((4,5-Dihydroxy-2-(hydroxymethyl)-6-(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)tetrahydro-2H-pyran-3-yl)oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
2-((2-((4,5-Dihydroxy-2-(hydroxymethyl)-6-(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)tetrahydro-2H-pyran-3-yl)oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
Catalogue No.:PA 22 0181046
CAS :
NA
Molecular Formula : C31H43N3O15
Molecular Weight : 697.69


1-((1R,5S)-8-Amino-6-nitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
1-((1R,5S)-8-Amino-6-nitro-1,2,4,5-tetrahydro-3H-1,5-methanobenzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one
Catalogue No.:PA 22 0181051
CAS :
NA
Molecular Formula : C13H12F3N3O3
Molecular Weight : 315.25


(2R,3R)-2,3-Dihydroxy-1,4-bis(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)butane-1,4-dione
(2R,3R)-2,3-Dihydroxy-1,4-bis(6,7,9,10-tetrahydro-8H-6,10-methanoazepino[4,5-g]quinoxalin-8-yl)butane-1,4-dione
Catalogue No.:PA 22 0181052
CAS :
NA
Molecular Formula : C30H28N6O4
Molecular Weight : 536.59