prasugrel and its Impurities
A member of the thienopyridine class of ADP receptor inhibitors, Prasugrel is a platelet inhibitor. It is used to prevent formation of blood clots and hence helps in treating thrombosis in patients with ACS. Used as a racemic mixture in hydrochloride salt. Reference standards of Prasugrel API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


2-Acetoxy-5-(2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-6,7-dihydrothieno[3,2-c]pyridin-5-ium Bromide
2-Acetoxy-5-(2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-6,7-dihydrothieno[3,2-c]pyridin-5-ium Bromide
Catalogue No.:PA 16 68670
CAS :
NA
Molecular Formula : C20H19BrFNO3S
Molecular Weight : 452.34


5-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl propionate
5-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl propionate
Catalogue No.:PA 16 68740
CAS :
150322-44-4
Molecular Formula : C21H22FNO3S
Molecular Weight : 387.47

![1-[2-(Acetyloxy)-6,7-dihydrothieno[3,2-c]pyridin-5 PA 16 68750](https://www.pharmaffiliates.com/pimages/PA1668750.jpg)
1-[2-(Acetyloxy)-6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]-5-bromo-1-(2-fluorophenyl)-2-pentanone (2Z)-2-Butenedioate
1-[2-(Acetyloxy)-6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]-5-bromo-1-(2-fluorophenyl)-2-pentanone (2Z)-2-Butenedioate
Catalogue No.:PA 16 68750
CAS :
1373350-60-7
Molecular Formula : C24H25BrFNO7S
Molecular Weight : 570.43

![1-[2-(Acetyloxy)-6,7-dihydrothieno[3,2-c]pyridin-5 PA 16 68760](https://www.pharmaffiliates.com/pimages/PA1668760.jpg)
1-[2-(Acetyloxy)-6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]-5-bromo-1-(2-fluorophenyl)-2-pentanone
1-[2-(Acetyloxy)-6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]-5-bromo-1-(2-fluorophenyl)-2-pentanone
Catalogue No.:PA 16 68760
CAS :
1373350-59-4
Molecular Formula : C20H21BrFNO3S
Molecular Weight : 454.35

![1-Cyclopropyl-2-(6,7-dihydrothieno[3,2-c]pyridin-5 PA 16 0681005](https://www.pharmaffiliates.com/pimages/PA160681005.jpg)
1-Cyclopropyl-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)-2-(2-fluorophenyl)ethan-1-one hydrochloride
1-Cyclopropyl-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)-2-(2-fluorophenyl)ethan-1-one hydrochloride
Catalogue No.:PA 16 0681005
CAS :
1618108-01-2
Molecular Formula : C18H19ClFNOS
Molecular Weight : 351.86


(Z)-2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-(methylthio)piperidin-3-ylidene)acetic acid
(Z)-2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-(methylthio)piperidin-3-ylidene)acetic acid
Catalogue No.:PA 16 3191000
CAS :
1007602-99-4
Molecular Formula : C19H22FNO3S
Molecular Weight : 363.45


5-(5-Bromo-5-(2-fluorophenyl)-4-oxopentyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate
5-(5-Bromo-5-(2-fluorophenyl)-4-oxopentyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate
Catalogue No.:PA 16 3191001
CAS :
NA
Molecular Formula : C20H21BrFNO3S
Molecular Weight : 454.35

![5-[2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5, PA 16 0681007](https://www.pharmaffiliates.com/pimages/PA160681007.jpg)
5-[2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5,6,7,7a-tetrahydro-thieno[3,2-c]pyridin-2(4H)-one hydrochloride
5-[2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5,6,7,7a-tetrahydro-thieno[3,2-c]pyridin-2(4H)-one hydrochloride
Catalogue No.:PA 16 0681007
CAS :
150322-39-7
Molecular Formula : C18H19ClFNO2S
Molecular Weight : 367.86


5-(1-Bromo-2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-5,6,7,7a-tetrahydrothieno[3,2-c]pyridin-2(4H)-one
5-(1-Bromo-2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-5,6,7,7a-tetrahydrothieno[3,2-c]pyridin-2(4H)-one
Catalogue No.:PA 16 3191005
CAS :
NA
Molecular Formula : C18H17BrFNO2S
Molecular Weight : 410.3


(Z)-2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic acid Hydrochloride
(Z)-2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic acid Hydrochloride
Catalogue No.:PA 16 0681009
CAS :
239466-73-0
Molecular Formula : C18H21ClFNO3S
Molecular Weight : 385.88


5-(4-Bromo-1-(2-fluorophenyl)-2-oxobutyl)-3a,4,5,6,7,7a-hexahydrothieno[3,2-c]pyridin-2-yl Acetate
5-(4-Bromo-1-(2-fluorophenyl)-2-oxobutyl)-3a,4,5,6,7,7a-hexahydrothieno[3,2-c]pyridin-2-yl Acetate
Catalogue No.:PA 16 3191006
CAS :
NA
Molecular Formula : C19H21BrFNO3S
Molecular Weight : 442.34


2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic Acid
2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic Acid
Catalogue No.:PA 16 3191009
CAS :
204204-98-8
Molecular Formula : C18H20FNO3S
Molecular Weight : 349.42


2-(1-(2-Cyclopropyl-1-(2-fluorophenyl-1,2,3,4,5,6-13C6)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic Acid
2-(1-(2-Cyclopropyl-1-(2-fluorophenyl-1,2,3,4,5,6-13C6)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic Acid
Catalogue No.:PA STI 089875
CAS :
1261432-03-4
Molecular Formula : C1213C6H20FNO3S
Molecular Weight : 355.37


(E)-2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic Acid
(E)-2-(1-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic Acid
Catalogue No.:PA 16 3191010
CAS :
239466-74-1
Molecular Formula : C18H20FNO3S
Molecular Weight : 349.42