naratriptan hydrochloride and its Impurities
Naratriptan Hydrochloride is used for the treatment of the acute migraine attacks and the symptoms of migraine. It is a triptan drug. Reference standards of Naratriptan Hydrochloride API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


2-[3-(1-Methylpiperidin-4-yl)-5-(2-methylsulfamoyl-ethyl)-indol-1-yl] ethanesulfonic Acid Methylamide
2-[3-(1-Methylpiperidin-4-yl)-5-(2-methylsulfamoyl-ethyl)-indol-1-yl] ethanesulfonic Acid Methylamide
Catalogue No.:PA 14 47540
CAS :
1346746-73-3
Molecular Formula : C20H32N4O4S2
Molecular Weight : 456.62

![2-[[3-Methylpiperidin-4yl]-1H-indol-5-yl]ethanesul PA 14 47590](https://www.pharmaffiliates.com/pimages/PA1447590.jpg)
2-[[3-Methylpiperidin-4yl]-1H-indol-5-yl]ethanesulfonic Acid methyl-(2-methylsulfonyl-ethyl)amide
2-[[3-Methylpiperidin-4yl]-1H-indol-5-yl]ethanesulfonic Acid methyl-(2-methylsulfonyl-ethyl)amide
Catalogue No.:PA 14 47590
CAS :
NA
Molecular Formula : C20H31N3O4S2
Molecular Weight : 441.61


N-Methyl-1-(phenylmethyl)-3-(1,2,3,6-tetrahydro-1-methyl-4-pyridinyl)-1H-indole-5-ethanesulfonamide
N-Methyl-1-(phenylmethyl)-3-(1,2,3,6-tetrahydro-1-methyl-4-pyridinyl)-1H-indole-5-ethanesulfonamide
Catalogue No.:PA 14 47690
CAS :
894351-86-1
Molecular Formula : C24H29N3O2S
Molecular Weight : 423.57


N-Methyl-2-(3-(1-methylpiperidin-4-yl)-1H-indol-5-yl)-N-(2-(N-methylsulfamoyl)ethyl)ethanesulfonamide
N-Methyl-2-(3-(1-methylpiperidin-4-yl)-1H-indol-5-yl)-N-(2-(N-methylsulfamoyl)ethyl)ethanesulfonamide
Catalogue No.:PA 14 0471001
CAS :
2512213-55-5
Molecular Formula : C20H32N4O4S2
Molecular Weight : 456.62


2-[3-(1-Methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H -indol-5-yl]ethanesulfonic acid methylamide Oxalate
2-[3-(1-Methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H -indol-5-yl]ethanesulfonic acid methylamide Oxalate
Catalogue No.:PA 14 0471003
CAS :
121679-21-8
Molecular Formula : C19H25N3O6S
Molecular Weight : 423.48