Fexofenadine-impurities | Pharmaffiliates

fexofenadine and its Impurities

Fexofenadine used to relieve allergy symptoms such as watery eyes, runny nose, itching eyes/nose, sneezing, hives, and itching. It is sold under the trade name Allegra & FX 24. Reference standards of Fexofenadine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 65 results for fexofenadine Impurities
PA 06 17020

Fexofenadine - Impurity B

meta-Fexofenadine


  • Catalogue No.:PA 06 17020

  • CAS :

    479035-75-1

  • Molecular Formula : C32H39NO4

  • Molecular Weight : 501.66

PA 06 17040

4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-butyn-1-yl]-α,α-dimethyl-benzeneacetic Acid

4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-butyn-1-yl]-α,α-dimethyl-benzeneacetic Acid


  • Catalogue No.:PA 06 17040

  • CAS :

    832088-68-3

  • Molecular Formula : C32H35NO3

  • Molecular Weight : 481.63

PA 06 17050

Fexofenadine - Impurity E

Diphenyl(piperidin-4-yl)methanol


  • Catalogue No.:PA 06 17050

  • CAS :

    115-46-8

  • Molecular Formula : C18H21NO

  • Molecular Weight : 267.37

PA 06 17510

4-(4-Chloro-1-oxobutyl)-α,α-dimethylbenzeneacetic Acid Methyl Ester

4-(4-Chloro-1-oxobutyl)-α,α-dimethylbenzeneacetic Acid Methyl Ester


  • Catalogue No.:PA 06 17510

  • CAS :

    154477-54-0

  • Molecular Formula : C15H19ClO3

  • Molecular Weight : 282.76

PA 06 17520

2-Phenylisobutyric Acid

2-Phenylisobutyric Acid


  • Catalogue No.:PA 06 17520

  • CAS :

    826-55-1

  • Molecular Formula : C10H12O2

  • Molecular Weight : 164.2

PA 06 17540

Methyl 4-(Cyanomethyl)benzoate

Methyl 4-(Cyanomethyl)benzoate


  • Catalogue No.:PA 06 17540

  • CAS :

    76469-88-0

  • Molecular Formula : C10H9NO2

  • Molecular Weight : 175.18

PA 06 17550

Methyl 2-(4-(4-Hydroxybutanoyl)phenyl)-2-methylpropanoate

Methyl 2-(4-(4-Hydroxybutanoyl)phenyl)-2-methylpropanoate


  • Catalogue No.:PA 06 17550

  • CAS :

    394222-30-1

  • Molecular Formula : C15H20O4

  • Molecular Weight : 264.32

PA 06 17560

Methyl 2-(3-(4-Chlorobutanoyl)phenyl)-2-methylpropanoate

Methyl 2-(3-(4-Chlorobutanoyl)phenyl)-2-methylpropanoate


  • Catalogue No.:PA 06 17560

  • CAS :

    343255-26-5

  • Molecular Formula : C15H19ClO3

  • Molecular Weight : 282.76

PA 06 17570

Methyl 2-Methyl-2-phenylpropanoate

Methyl 2-Methyl-2-phenylpropanoate


  • Catalogue No.:PA 06 17570

  • CAS :

    57625-74-8

  • Molecular Formula : C11H14O2

  • Molecular Weight : 178.23

PA 06 17580

4-(Cyclopropylcarbonyl)-α,α-dimethylbenzeneacetic Acid

4-(Cyclopropylcarbonyl)-α,α-dimethylbenzeneacetic Acid


  • Catalogue No.:PA 06 17580

  • CAS :

    162096-54-0

  • Molecular Formula : C14H16O3

  • Molecular Weight : 232.28

PA 06 17590

Fexofenadine

Fexofenadine


  • Catalogue No.:PA 06 17590

  • CAS :

    83799-24-0

  • Molecular Formula : C32H39NO4

  • Molecular Weight : 501.66

PA 06 17600

2-(4-(4-(4-(4-Benzoylphenyl)piperidin-1-yl)-1-hydroxybutyl)phenyl)-2-methylpropanoic Acid

2-(4-(4-(4-(4-Benzoylphenyl)piperidin-1-yl)-1-hydroxybutyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PA 06 17600

  • CAS :

    1010812-98-2

  • Molecular Formula : C32H37NO4

  • Molecular Weight : 499.64

PA 06 17620

1-Oxo Fexofenadine Methyl Ester

1-Oxo Fexofenadine Methyl Ester


  • Catalogue No.:PA 06 17620

  • CAS :

    154477-55-1

  • Molecular Formula : C33H39NO4

  • Molecular Weight : 513.67

PA STI 088130

(1-Benzylpiperidin-4-yl)diphenyl-d10-methanol

(1-Benzylpiperidin-4-yl)diphenyl-d10-methanol


  • Catalogue No.:PA STI 088130

  • CAS :

    NA

  • Molecular Formula : C25H17D10NO

  • Molecular Weight : 367.55

PA STI 088131

Decarboxy Fexofenadine-d3

Decarboxy Fexofenadine-d3


  • Catalogue No.:PA STI 088131

  • CAS :

    2714420-05-8

  • Molecular Formula : C31H36D3NO2

  • Molecular Weight : 460.67

PA STI 088132

(Decarboxy)-1-Oxo Fexofenadine-d10 Methanol

(Decarboxy)-1-Oxo Fexofenadine-d10 Methanol


  • Catalogue No.:PA STI 088132

  • CAS :

    NA

  • Molecular Formula : C32H29D10NO3

  • Molecular Weight : 495.72

PA STI 088133

1-Dehydroxy-1-dehyro-fexofenadine-d6 Methyl Ester

1-Dehydroxy-1-dehyro-fexofenadine-d6 Methyl Ester


  • Catalogue No.:PA STI 088133

  • CAS :

    154825-95-3

  • Molecular Formula : C33H31D6NO3

  • Molecular Weight : 501.69

PA STI 088134

Fexofenadine-d10 Hydrochloride

Fexofenadine-d10 Hydrochloride


  • Catalogue No.:PA STI 088134

  • CAS :

    1215821-44-5

  • Molecular Formula : C32H30D10ClNO4

  • Molecular Weight : 548.18

PA STI 088135

Fexofenadine-d6

Fexofenadine-d6


  • Catalogue No.:PA STI 088135

  • CAS :

    548783-71-7

  • Molecular Formula : C32H33D6NO4

  • Molecular Weight : 507.69

PA STI 088136

Fexofenadine-d6 Methyl Ester

Fexofenadine-d6 Methyl Ester


  • Catalogue No.:PA STI 088136

  • CAS :

    1286458-00-1

  • Molecular Formula : C33H35D6NO4

  • Molecular Weight : 521.72

PA STI 088137

Fexofenadine-d10 Methyl Ester

Fexofenadine-d10 Methyl Ester


  • Catalogue No.:PA STI 088137

  • CAS :

    NA

  • Molecular Formula : C33H31D10NO4

  • Molecular Weight : 525.74

PA STI 088138

1-Oxo Fexofenadine-d6 Methyl Ester

1-Oxo Fexofenadine-d6 Methyl Ester


  • Catalogue No.:PA STI 088138

  • CAS :

    NA

  • Molecular Formula : C33H33D6NO4

  • Molecular Weight : 519.70

PA STI 088139

1-Oxo Fexofenadine-d10 Methyl Ester

1-Oxo Fexofenadine-d10 Methyl Ester


  • Catalogue No.:PA STI 088139

  • CAS :

    NA

  • Molecular Formula : C33H29D10NO4

  • Molecular Weight : 523.73

PA STI 088140

α-(4-Piperidyl)benzhydrol-d10

α-(4-Piperidyl)benzhydrol-d10


  • Catalogue No.:PA STI 088140

  • CAS :

    NA

  • Molecular Formula : C18H11D10NO

  • Molecular Weight : 277.43

PAI 06 002010

Methyl 2-(3-(4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoate

Methyl 2-(3-(4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoate


  • Catalogue No.:PAI 06 002010

  • CAS :

    NA

  • Molecular Formula : C33H39NO4

  • Molecular Weight : 513.67

PAI 06 002020

2-(3-(4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoic Acid

2-(3-(4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PAI 06 002020

  • CAS :

    NA

  • Molecular Formula : C32H37NO4

  • Molecular Weight : 499.64

PAI 06 002030

2-(3-(1-Hydroxy-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butyl)phenyl)-2-methylpropanoic Acid

2-(3-(1-Hydroxy-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PAI 06 002030

  • CAS :

    NA

  • Molecular Formula : C32H39NO4

  • Molecular Weight : 501.66

PAI 06 002040

4-Chloro-1-(4-isopropylphenyl)butan-1-one

4-Chloro-1-(4-isopropylphenyl)butan-1-one


  • Catalogue No.:PAI 06 002040

  • CAS :

    70289-38-2

  • Molecular Formula : C13H17ClO

  • Molecular Weight : 224.73

PAI 06 002050

4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)-1-(4-isopropylphenyl)butan-1-one

4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)-1-(4-isopropylphenyl)butan-1-one


  • Catalogue No.:PAI 06 002050

  • CAS :

    185066-40-4

  • Molecular Formula : C31H37NO2

  • Molecular Weight : 455.63

PA 06 17630

2-(3-(4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)but-1-en-1-yl)phenyl)-2-methylpropanoic Acid Hydrochloride

2-(3-(4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)but-1-en-1-yl)phenyl)-2-methylpropanoic Acid Hydrochloride


  • Catalogue No.:PA 06 17630

  • CAS :

    NA

  • Molecular Formula : C32H38ClNO3

  • Molecular Weight : 520.11

PA IPIPRS 03 11

Fexofenadine Hydrochloride (IPRS/03/11)-from IPC


  • Catalogue No.:PA IPIPRS 03 11

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

PA JP0083

Fexofenadine Hydrochloride (JP 0083)

Fexofenadine Hydrochloride (JP 0083)


  • Catalogue No.:PA JP0083

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA EPY0000751

Fexofenadine impurity A (Y0000751)

Fexofenadine impurity A (Y0000751)


  • Catalogue No.:PA EPY0000751

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA EPY0000752

Fexofenadine impurity B (Y0000752)

Fexofenadine impurity B (Y0000752)


  • Catalogue No.:PA EPY0000752

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA EPY0000753

Fexofenadine impurity C (Y0000753)

Fexofenadine impurity C (Y0000753)


  • Catalogue No.:PA EPY0000753

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA EPY0000789

Fexofenadine hydrochloride (Y0000789)

Fexofenadine hydrochloride (Y0000789)


  • Catalogue No.:PA EPY0000789

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA BP1095RB

fexofenadine hydrochloride (1095RB)

fexofenadine hydrochloride (1095RB)


  • Catalogue No.:PA BP1095RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA BP1096RB

fexofenadine impurity standard (1096RB)

fexofenadine impurity standard (1096RB)


  • Catalogue No.:PA BP1096RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1270377

Fexofenadine Hydrochloride (1270377)

Fexofenadine Hydrochloride (1270377)


  • Catalogue No.:PA USP1270377

  • CAS :

    153439-40-8

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1270388

Fexofenadine Related Compound A (4-[1-oxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-alpha,a (1270388)

Fexofenadine Related Compound A (4-[1-oxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-alpha,a (1270388)


  • Catalogue No.:PA USP1270388

  • CAS :

    76811-98-8

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1270399

Fexofenadine Related Compound B (3-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-alp (1270399)

Fexofenadine Related Compound B (3-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-alp (1270399)


  • Catalogue No.:PA USP1270399

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1270446

Fexofenadine Related Compound C ((+/-)-4-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-but (1270446)

Fexofenadine Related Compound C ((+/-)-4-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-but (1270446)


  • Catalogue No.:PA USP1270446

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 06 17640

(Z)-4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-buten-1-yl]-α,α-dimethyl-benzeneacetic Acid

(Z)-4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-buten-1-yl]-α,α-dimethyl-benzeneacetic Acid


  • Catalogue No.:PA 06 17640

  • CAS :

    NA

  • Molecular Formula : C32H37NO3

  • Molecular Weight : 483.65

PAI 06 002060

2-(3-(4-Chlorobutanoyl)phenyl)-2-methylpropanoic Acid

2-(3-(4-Chlorobutanoyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PAI 06 002060

  • CAS :

    NA

  • Molecular Formula : C14H17ClO3

  • Molecular Weight : 268.74

PAI 06 002070

Methyl 2-(3-(1-hydroxy-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butyl)phenyl)-2-methylpropanoate

Methyl 2-(3-(1-hydroxy-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butyl)phenyl)-2-methylpropanoate


  • Catalogue No.:PAI 06 002070

  • CAS :

    1187954-56-8

  • Molecular Formula : C33H41NO4

  • Molecular Weight : 515.69

PA 06 0171003

2-(4-(4-(4-(Diphenylmethylene)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoic Acid Methyl Ester

2-(4-(4-(4-(Diphenylmethylene)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoic Acid Methyl Ester


  • Catalogue No.:PA 06 0171003

  • CAS :

    1025909-08-3

  • Molecular Formula : C33H37NO3

  • Molecular Weight : 495.66

PA 06 0171002

4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)-1-(4-(prop-1-en-2-yl)phenyl)butan-1-one

4-(4-(Hydroxydiphenylmethyl)piperidin-1-yl)-1-(4-(prop-1-en-2-yl)phenyl)butan-1-one


  • Catalogue No.:PA 06 0171002

  • CAS :

    NA

  • Molecular Formula : C31H35NO2

  • Molecular Weight : 453.63

PA 06 0171004

(R)-Fexofenadine

(R)-Fexofenadine


  • Catalogue No.:PA 06 0171004

  • CAS :

    139965-10-9

  • Molecular Formula : C32H39NO4

  • Molecular Weight : 501.67

PA 06 0171005

(S)-Fexofenadine

(S)-Fexofenadine


  • Catalogue No.:PA 06 0171005

  • CAS :

    139965-11-0

  • Molecular Formula : C32H39NO4

  • Molecular Weight : 501.67

PA 06 0171006

Ethyl 2-(4-(1-hydroxy-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butyl)phenyl)-2-methylpropanoate

Ethyl 2-(4-(1-hydroxy-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butyl)phenyl)-2-methylpropanoate


  • Catalogue No.:PA 06 0171006

  • CAS :

    174483-06-8

  • Molecular Formula : C34H43NO4

  • Molecular Weight : 529.72

PAI 06 002071

Methyl 2-(3-Bromophenyl)-2-methylpropanoate

Methyl 2-(3-Bromophenyl)-2-methylpropanoate


  • Catalogue No.:PAI 06 002071

  • CAS :

    251458-15-8

  • Molecular Formula : C11H13BrO2

  • Molecular Weight : 257.13

PAI 06 002072

Methyl 2-(3-(4-hydroxybut-1-yn-1-yl)phenyl)-2-methylpropanoate

Methyl 2-(3-(4-hydroxybut-1-yn-1-yl)phenyl)-2-methylpropanoate


  • Catalogue No.:PAI 06 002072

  • CAS :

    NA

  • Molecular Formula : C15H18O3

  • Molecular Weight : 246.31

PAI 06 002073

Methyl 2-(3-(2-methoxytetrahydrofuran-2-yl)phenyl)-2-methylpropanoate

Methyl 2-(3-(2-methoxytetrahydrofuran-2-yl)phenyl)-2-methylpropanoate


  • Catalogue No.:PAI 06 002073

  • CAS :

    NA

  • Molecular Formula : C16H22O4

  • Molecular Weight : 278.35

PA 06 0171007

4-[4-(Hydroxydiphenylmethyl)piperidin-1-yl]-1-(4-isopropylphenyl)butan-1-ol hydrochloride

4-[4-(Hydroxydiphenylmethyl)piperidin-1-yl]-1-(4-isopropylphenyl)butan-1-ol hydrochloride


  • Catalogue No.:PA 06 0171007

  • CAS :

    NA

  • Molecular Formula : C31H40ClNO2

  • Molecular Weight : 494.12

PA 06 0171008

(E)-2-(4-(4-(4-(Diphenylmethylene)piperidin-1-yl)but-1-en-1-yl)phenyl)-2-methylpropanoic Acid;

(E)-2-(4-(4-(4-(Diphenylmethylene)piperidin-1-yl)but-1-en-1-yl)phenyl)-2-methylpropanoic Acid;


  • Catalogue No.:PA 06 0171008

  • CAS :

    1026338-29-3

  • Molecular Formula : C32H35NO2

  • Molecular Weight : 465.64

PA 06 0171009

2-(4-(4-(4-Benzhydrylpiperidin-1-yl)-1-hydroxybutyl)phenyl)-2-methylpropanoic Acid

2-(4-(4-(4-Benzhydrylpiperidin-1-yl)-1-hydroxybutyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PA 06 0171009

  • CAS :

    1347311-10-7

  • Molecular Formula : C32H39NO3

  • Molecular Weight : 485.67

PA 06 0171010

2-(4-(4-(4-(Diphenylmethylene)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoic Acid

2-(4-(4-(4-(Diphenylmethylene)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PA 06 0171010

  • CAS :

    NA

  • Molecular Formula : C32H35NO3

  • Molecular Weight : 481.64

PA 06 0171011

2-(4-(1,4-Dihydroxybutyl)phenyl)-2-methylpropanoic Acid

2-(4-(1,4-Dihydroxybutyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PA 06 0171011

  • CAS :

    695165-49-2

  • Molecular Formula : C14H20O4

  • Molecular Weight : 252.31

PA 06 0171012

2-(4-(4-Chloro-1-hydroxybutyl)phenyl)-2-methylpropanoic Acid

2-(4-(4-Chloro-1-hydroxybutyl)phenyl)-2-methylpropanoic Acid


  • Catalogue No.:PA 06 0171012

  • CAS :

    192885-13-5

  • Molecular Formula : C14H19ClO3

  • Molecular Weight : 270.75

PA 06 0171000

Diphenyl(piperidin-3-yl)methanol

Diphenyl(piperidin-3-yl)methanol


  • Catalogue No.:PA 06 0171000

  • CAS :

    88783-30-6

  • Molecular Formula : C18H21NO

  • Molecular Weight : 267.37

PA 06 0171013

Methyl 2-(4-(4-(3-(hydroxydiphenylmethyl)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoate

Methyl 2-(4-(4-(3-(hydroxydiphenylmethyl)piperidin-1-yl)butanoyl)phenyl)-2-methylpropanoate


  • Catalogue No.:PA 06 0171013

  • CAS :

    NA

  • Molecular Formula : C33H39NO4

  • Molecular Weight : 513.68

PA IMPF004

Fexofenadine Impurity A (IMPF004)

Fexofenadine Impurity A (IMPF004)


  • Catalogue No.:PA IMPF004

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA IMP 09 17

Fexofenadine Impurity B (IMP/09/17)

Fexofenadine Impurity B (IMP/09/17)


  • Catalogue No.:PA IMP 09 17

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 06 0171001

4-(Diphenylmethylene)piperidine

4-(Diphenylmethylene)piperidine


  • Catalogue No.:PA 06 0171001

  • CAS :

    50706-57-5

  • Molecular Formula : C18H19N

  • Molecular Weight : 249.36

PA IPRSF014

Fexofenadine Hydrochloride (IPRSF014)

Fexofenadine Hydrochloride (IPRSF014)


  • Catalogue No.:PA IPRSF014

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA