Impurity Standards

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Diphenylmethanol

Product Code:
DH /CLT/1007
Molecular Formula:
C13H12O
CAS Number:
91-01-0
Molecular Weight:
184.23
Synonyms: Benzhydryl alcohol


Darifenacin N-Oxide Impurity

Product Code:
DH /DFN/1001
Molecular Formula:
C28H30N2O3
CAS Number:
1391080-40-2
Molecular Weight:
442.55
Synonyms: (S)-2-[ 1-[2-(2,3-Dihydrobenzofuran-5-yl)ethyl]-1 -oxidopyrrolidin-3-yl]-2,2-diphenyl acetamide


Darifenacin R-isomer Impurity

Product Code:
DH /DFN/1002
Molecular Formula:
C28H31BrN2O2
CAS Number:
NA
Molecular Weight:
507.46
Synonyms: (R)-2-[1-[2-(2,3-Dihydrobenzfuran-5-yl)ethyl]-3-pyrrolidinyl]-2,2-diphenylacetamide hydro bromide.


Darifenacin Amide Impurity

Product Code:
DH /DFN/1003
Molecular Formula:
C18H20N2O
CAS Number:
103887-32-7
Molecular Weight:
280.37
Synonyms: 3-(1-Carbamoyl-1,1-diphenylmethyl)pyrrolidine


Darifenacin 3-Hydroxy Impurity

Product Code:
DH /DFN/1004
Molecular Formula:
C28H30N2O3
CAS Number:
206048-82-0
Molecular Weight:
442.55
Synonyms: 2-{1-[2-(2,3-Dihydro-3-hydroxy-5-benzofuranyl)ethyl]-pyrrolidin-3(S)-yl}-2,2-diphenyl-acetamide


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