Clemastine Fumarate-impurities | Pharmaffiliates

clemastine fumarate and its Impurities

Clemastine Fumarate is used to relieve hay fever and allergy symptoms, including sneezing; runny nose; and red, itchy, tearing eyes. It is also known as meclastin.. Reference standards of Clemastine Fumarate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

Displaying 4 results for clemastine fumarate Impurities
PA 56 42000

Clemastine Fumarate - API

Clemastine Fumarate


  • Catalogue No.:PA 56 42000

  • CAS :

    14976-57-9

  • Molecular Formula : C25H30ClNO5

  • Molecular Weight : 459.96

PA 56 42030

Clemastine Fumarate - Impurity C

(RS)-1-(4-Chlorophenyl)-1-phenylethanol


  • Catalogue No.:PA 56 42030

  • CAS :

    59767-24-7

  • Molecular Formula : C14H13ClO

  • Molecular Weight : 232.71

PA 56 0420010

Clemastine Fumarate - Impurity A

(1RS,2R)-2-[2-[(1R)-1-(4-Chlorophenyl)-1-phenylethoxy]ethyl]-1-methylpyrrolidine 1-oxide


  • Catalogue No.:PA 56 0420010

  • CAS :

    108825-05-4

  • Molecular Formula : C21H26ClNO2

  • Molecular Weight : 359.89

PA 56 0420020

Clemastine Fumarate - Impurity B

4-[(1R)-1-(4-Chlorophenyl)-1-phenylethoxy]-1-methylazepane,


  • Catalogue No.:PA 56 0420020

  • CAS :

    1352549-49-5

  • Molecular Formula : C21H26ClNO

  • Molecular Weight : 343.9