darifenacin and its Impurities
Darifenacin blocks M3 muscarinic acetylcholine receptors, which mediate bladder muscle contractions. It is a medication used to treat urinary incontinence.. Reference standards of Darifenacin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below


Darifenacin Peak ID Mixture (A mixture consisting of Darifenacin Hydrobromide (99%), Dealkyl darife (1164222)
Darifenacin Peak ID Mixture (A mixture consisting of Darifenacin Hydrobromide (99%), Dealkyl darife (1164222)
Catalogue No.:PA USP1164222
CAS :
NA
Molecular Formula : NA
Molecular Weight : NA


(S)-N-(2-(2,3-Dihydrobenzofuran-5-yl)ethyl)-2-(1-(2-(2,3-dihydrobenzofuran-5-yl)ethyl)pyrrolidin-3-yl)-2,2-diphenylacetamide
(S)-N-(2-(2,3-Dihydrobenzofuran-5-yl)ethyl)-2-(1-(2-(2,3-dihydrobenzofuran-5-yl)ethyl)pyrrolidin-3-yl)-2,2-diphenylacetamide
Catalogue No.:PA 31 0251006
CAS :
2280857-32-9
Molecular Formula : C38H40N2O3
Molecular Weight : 572.75


(S)-2-(1-(2-(2,3-Dihydrobenzofuran-5-yl)ethyl-1,1,2,2-d4)pyrrolidin-3-yl)-2,2-diphenylacetamide
(S)-2-(1-(2-(2,3-Dihydrobenzofuran-5-yl)ethyl-1,1,2,2-d4)pyrrolidin-3-yl)-2,2-diphenylacetamide
Catalogue No.:PA 31 0251014
CAS :
1095598-84-7
Molecular Formula : C28H26D4N2O2
Molecular Weight : 430.58


3-(2-Amino-2-oxo-1,1-diphenylethyl)-1-(2-(2,3-dihydrobenzofuran-5-yl)ethyl)pyrrolidine 1-oxide
3-(2-Amino-2-oxo-1,1-diphenylethyl)-1-(2-(2,3-dihydrobenzofuran-5-yl)ethyl)pyrrolidine 1-oxide
Catalogue No.:PA 31 0251015
CAS :
2416229-88-2
Molecular Formula : C28H30N2O3
Molecular Weight : 442.56