Revefenacin and its Impurities
Revefenacin (trade name Yupelri) is a pharmaceutical drug for the treatment of chronic obstructive pulmonary disease (COPD). Reference standards of Revefenacin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


1-(2-(4-(hydroxymethyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
1-(2-(4-(hydroxymethyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
Catalogue No.:PA 18 1231000
CAS :
1682660-39-4
Molecular Formula : C29H33N3O4
Molecular Weight : 487.6

![1-(4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)pi PA 18 1231005](https://www.pharmaffiliates.com/pimages/PA181231005.jpg)
1-(4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl)(methyl)carbamoyl)benzyl)piperidine-4-carboxylic acid
1-(4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl)(methyl)carbamoyl)benzyl)piperidine-4-carboxylic acid
Catalogue No.:PA 18 1231005
CAS :
909800-36-8
Molecular Formula : C35H42N4O5
Molecular Weight : 598.74


1-(2-(4-((4-(Aminomethyl)piperidin-1-yl)methyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
1-(2-(4-((4-(Aminomethyl)piperidin-1-yl)methyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
Catalogue No.:PA 18 1231008
CAS :
NA
Molecular Formula : C35H45N5O3
Molecular Weight : 583.78


1-(2-(4-((4-Carbamoylpiperidin-1-yl)(hydroxy)methyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
1-(2-(4-((4-Carbamoylpiperidin-1-yl)(hydroxy)methyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
Catalogue No.:PA 18 1231010
CAS :
NA
Molecular Formula : C35H43N5O5
Molecular Weight : 613.76

![[1,1'-Biphenyl]-2-yl (1-(2-(3-([1,1'-biphenyl]-2-y PA 18 1231011](https://www.pharmaffiliates.com/pimages/PA181231011.jpg)
[1,1'-Biphenyl]-2-yl (1-(2-(3-([1,1'-biphenyl]-2-yl)-1-methylureido)ethyl)piperidin-4-yl)carbamate
[1,1'-Biphenyl]-2-yl (1-(2-(3-([1,1'-biphenyl]-2-yl)-1-methylureido)ethyl)piperidin-4-yl)carbamate
Catalogue No.:PA 18 1231011
CAS :
NA
Molecular Formula : C34H36N4O3
Molecular Weight : 548.69

![4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)piper PA 18 1231012](https://www.pharmaffiliates.com/pimages/PA181231012.jpg)
4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl)(methyl)carbamoyl)benzoic Acid
4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl)(methyl)carbamoyl)benzoic Acid
Catalogue No.:PA 18 1231012
CAS :
NA
Molecular Formula : C29H31N3O5
Molecular Weight : 501.58

![1-(2-(4-((4-(((4-((2-(4-(([1,1'-Biphenyl]-2-ylcarb PA 18 1231013](https://www.pharmaffiliates.com/pimages/PA181231013.jpg)
1-(2-(4-((4-(((4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl)(methyl)carbamoyl)phenyl)(hydroxy)methyl)carbamoyl)piperidin-1-yl)methyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
1-(2-(4-((4-(((4-((2-(4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)piperidin-1-yl)ethyl)(methyl)carbamoyl)phenyl)(hydroxy)methyl)carbamoyl)piperidin-1-yl)methyl)-N-methylbenzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
Catalogue No.:PA 18 1231013
CAS :
NA
Molecular Formula : C64H74N8O8
Molecular Weight : 1083.34

![4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)-1-(2-(4-((4 PA 18 1231015](https://www.pharmaffiliates.com/pimages/PA181231015.jpg)
4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)-1-(2-(4-((4-carbamoylpiperidin-1-yl)methyl)-N-methylbenzamido)ethyl)piperidine 1-oxide
4-(([1,1'-Biphenyl]-2-ylcarbamoyl)oxy)-1-(2-(4-((4-carbamoylpiperidin-1-yl)methyl)-N-methylbenzamido)ethyl)piperidine 1-oxide
Catalogue No.:PA 18 1231015
CAS :
NA
Molecular Formula : C35H43N5O5
Molecular Weight : 613.76


1-(2-(4-((4-Carbamoylpiperidin-1-yl)methyl)benzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
1-(2-(4-((4-Carbamoylpiperidin-1-yl)methyl)benzamido)ethyl)piperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
Catalogue No.:PA 18 1231016
CAS :
864751-29-1
Molecular Formula : C34H41N5O4
Molecular Weight : 583.73