montelukast and its Impurities

A leukotriene receptor antagonist, Montelukast is used for treating asthma and other allergic symptoms. It works by blocking a substance called leukotriene, which helps to decrease certain asthma and allergy symptoms. Reference standards of Montelukast API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 41 results for montelukast Impurities
PA 13 0530071

Montelukast - Impurity G (Sodium Salt)

Montelukast cis Isomer Sodium Salt

  • Catalogue No.:PA 13 0530071

  • CAS :

    1428448-96-7

  • Molecular Formula : C35H35ClNNaO3S

  • Molecular Weight : 608.17

Enquire
Details
PAI 13 004026

Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((methylsulfonyl)oxy)propyl)benzoate

Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((methylsulfonyl)oxy)propyl)benzoate

  • Catalogue No.:PAI 13 004026

  • CAS :

    855473-47-1

  • Molecular Formula : C29H26ClNO5S

  • Molecular Weight : 536.04

Enquire
Details
PAI 13 004027

Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(tosyloxy)propyl)benzoate

Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(tosyloxy)propyl)benzoate

  • Catalogue No.:PAI 13 004027

  • CAS :

    NA

  • Molecular Formula : C35H30ClNO5S

  • Molecular Weight : 612.14

Enquire
Details
PA 13 0531028

(R)-1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propan-1-ol

(R)-1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propan-1-ol

  • Catalogue No.:PA 13 0531028

  • CAS :

    142542-48-1

  • Molecular Formula : C29H28ClNO2

  • Molecular Weight : 458

Enquire
Details
PAI 13 004028

(S,E)-2-(1-(((1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(methoxycarbonyl)phenyl)propyl)thio)methyl)cyclopropyl)acetic Acid

(S,E)-2-(1-(((1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(methoxycarbonyl)phenyl)propyl)thio)methyl)cyclopropyl)acetic Acid

  • Catalogue No.:PAI 13 004028

  • CAS :

    NA

  • Molecular Formula : C34H32ClNO4S

  • Molecular Weight : 586.14

Enquire
Details
PA IMPM029

Montelukast Sulphoxide (IMPM029)

Montelukast Sulphoxide (IMPM029)

  • Catalogue No.:PA IMPM029

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PAI 13 004029

Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((4-nitrobenzoyl)oxy)propyl)benzoate

Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((4-nitrobenzoyl)oxy)propyl)benzoate

  • Catalogue No.:PAI 13 004029

  • CAS :

    NA

  • Molecular Formula : C35H27ClN2O6

  • Molecular Weight : 607.06

Enquire
Details
PA 13 0531029

Montelukast Dimer Impurity

Montelukast Dimer Impurity

  • Catalogue No.:PA 13 0531029

  • CAS :

    120578-04-3

  • Molecular Formula : C28H18Cl2N2

  • Molecular Weight : 453.37

Enquire
Details
PAI 13 004030

(E)-1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl methanesulfonate

(E)-1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl methanesulfonate

  • Catalogue No.:PAI 13 004030

  • CAS :

    1429878-96-5

  • Molecular Formula : C30H30ClNO4S

  • Molecular Weight : 536.08

Enquire
Details
PAI 13 004031

Methyl (E)-2-(1-(((1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)thio)methyl)cyclopropyl)acetate

Methyl (E)-2-(1-(((1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)thio)methyl)cyclopropyl)acetate

  • Catalogue No.:PAI 13 004031

  • CAS :

    NA

  • Molecular Formula : C36H38ClNO3S

  • Molecular Weight : 600.21

Enquire
Details
PAI 13 004032

(E)-1-(2-(3-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-hydroxypropyl)phenyl)ethan-1-one

(E)-1-(2-(3-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-hydroxypropyl)phenyl)ethan-1-one

  • Catalogue No.:PAI 13 004032

  • CAS :

    NA

  • Molecular Formula : C28H24ClNO2

  • Molecular Weight : 441.96

Enquire
Details
PAI 13 004033

(E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl diphenyl Phosphate

(E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl diphenyl Phosphate

  • Catalogue No.:PAI 13 004033

  • CAS :

    NA

  • Molecular Formula : C40H33ClNO5P

  • Molecular Weight : 674.13

Enquire
Details
PAI 13 004034

Methyl 2-(1-(mercaptomethyl)cyclopropyl)acetate

Methyl 2-(1-(mercaptomethyl)cyclopropyl)acetate

  • Catalogue No.:PAI 13 004034

  • CAS :

    152922-73-1

  • Molecular Formula : C7H12O2S

  • Molecular Weight : 160.23

Enquire
Details
PA IMPM068

Montelukast Styrene (IMPM068)

Montelukast Styrene (IMPM068)

  • Catalogue No.:PA IMPM068

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PAI 13 004035

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(((1-(2-methoxy-2-oxoethyl)cyclopropyl)methyl)thio)propyl)benzoate

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(((1-(2-methoxy-2-oxoethyl)cyclopropyl)methyl)thio)propyl)benzoate

  • Catalogue No.:PAI 13 004035

  • CAS :

    NA

  • Molecular Formula : C35H34ClNO4S

  • Molecular Weight : 600.17

Enquire
Details
PA 13 0531030

Montelukast Methyl Ether

Montelukast Methyl Ether

  • Catalogue No.:PA 13 0531030

  • CAS :

    1351973-25-5

  • Molecular Formula : C36H38ClNO3S

  • Molecular Weight : 600.21

Enquire
Details
PA 13 0531031

Montelukast S-Sulfoxide

Montelukast S-Sulfoxide

  • Catalogue No.:PA 13 0531031

  • CAS :

    184763-44-8

  • Molecular Formula : C35H36ClNO4S

  • Molecular Weight : 602.19

Enquire
Details
PA 13 0531032

Montelukast Ketocarbinol Impurity

Montelukast Ketocarbinol Impurity

  • Catalogue No.:PA 13 0531032

  • CAS :

    2682015-83-2

  • Molecular Formula : C34H32ClNO4S

  • Molecular Weight : 586.14

Enquire
Details
PAI 13 004036

(E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl methanesulfonate

(E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl methanesulfonate

  • Catalogue No.:PAI 13 004036

  • CAS :

    NA

  • Molecular Formula : C29H26ClNO4S

  • Molecular Weight : 520.04

Enquire
Details
PAI 13 004037

Methyl 1-(hydroxymethyl)cyclopropane-1-carboxylate

Methyl 1-(hydroxymethyl)cyclopropane-1-carboxylate

  • Catalogue No.:PAI 13 004037

  • CAS :

    88157-42-0

  • Molecular Formula : C6H10O3

  • Molecular Weight : 130.14

Enquire
Details
PAI 13 004038

Methyl 1-formylcyclopropanecarboxylate

Methyl 1-formylcyclopropanecarboxylate

  • Catalogue No.:PAI 13 004038

  • CAS :

    88157-41-9

  • Molecular Formula : C6H8O3

  • Molecular Weight : 128.13

Enquire
Details
PAI 13 004039

Methyl 1-(cyano(hydroxy)methyl)cyclopropane-1-carboxylate

Methyl 1-(cyano(hydroxy)methyl)cyclopropane-1-carboxylate

  • Catalogue No.:PAI 13 004039

  • CAS :

    NA

  • Molecular Formula : C7H9NO3

  • Molecular Weight : 155.15

Enquire
Details
PAI 13 004040

Methyl (E)-2-(1-(((3-(2-acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)thio)methyl)cyclopropyl)acetate

Methyl (E)-2-(1-(((3-(2-acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)thio)methyl)cyclopropyl)acetate

  • Catalogue No.:PAI 13 004040

  • CAS :

    NA

  • Molecular Formula : C35H34ClNO3S

  • Molecular Weight : 584.17

Enquire
Details
PAI 13 004041

Methyl (E)-2-(3-chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)benzoate

Methyl (E)-2-(3-chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)benzoate

  • Catalogue No.:PAI 13 004041

  • CAS :

    NA

  • Molecular Formula : C28H23Cl2NO2

  • Molecular Weight : 476.4

Enquire
Details
PAI 13 004042

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((diphenoxyphosphoryl)oxy)propyl)benzoate

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((diphenoxyphosphoryl)oxy)propyl)benzoate

  • Catalogue No.:PAI 13 004042

  • CAS :

    NA

  • Molecular Formula : C40H33ClNO6P

  • Molecular Weight : 690.13

Enquire
Details
PAI 13 004043

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(((trifluoromethyl)sulfonyl)oxy)propyl)benzoate

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(((trifluoromethyl)sulfonyl)oxy)propyl)benzoate

  • Catalogue No.:PAI 13 004043

  • CAS :

    NA

  • Molecular Formula : C29H23ClF3NO5S

  • Molecular Weight : 590.01

Enquire
Details
PA 13 0531034

2-(1-(Mercaptomethyl)cyclopropyl)acetamide

2-(1-(Mercaptomethyl)cyclopropyl)acetamide

  • Catalogue No.:PA 13 0531034

  • CAS :

    162515-69-7

  • Molecular Formula : C6H11NOS

  • Molecular Weight : 145.22

Enquire
Details
PAI 13 004044

Methyl (E)-2-(3-bromo-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)benzoate

Methyl (E)-2-(3-bromo-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)benzoate

  • Catalogue No.:PAI 13 004044

  • CAS :

    NA

  • Molecular Formula : C28H23BrClNO2

  • Molecular Weight : 520.85

Enquire
Details
PAI 13 004045

(E)-1-(2-(3-Chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)phenyl)ethan-1-one

(E)-1-(2-(3-Chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)phenyl)ethan-1-one

  • Catalogue No.:PAI 13 004045

  • CAS :

    NA

  • Molecular Formula : C28H23Cl2NO

  • Molecular Weight : 460.4

Enquire
Details
PAI 13 004046

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(tosyloxy)propyl)benzoate

Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(tosyloxy)propyl)benzoate

  • Catalogue No.:PAI 13 004046

  • CAS :

    NA

  • Molecular Formula : C35H30ClNO5S

  • Molecular Weight : 612.14

Enquire
Details
PA 13 0531033

2-(1-((((1R)-1-(3-(1-(((1-(Carboxymethyl)cyclopropyl)methyl)thio)-2-(7-chloroquinolin-2-yl)ethyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)thio)methyl)cyclopropyl)acetic Acid

2-(1-((((1R)-1-(3-(1-(((1-(Carboxymethyl)cyclopropyl)methyl)thio)-2-(7-chloroquinolin-2-yl)ethyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)thio)methyl)cyclopropyl)acetic Acid

  • Catalogue No.:PA 13 0531033

  • CAS :

    1242260-05-4

  • Molecular Formula : C41H46ClNO5S2

  • Molecular Weight : 732.39

Enquire
Details
PAI 13 004047

(S,E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl acetate

(S,E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl acetate

  • Catalogue No.:PAI 13 004047

  • CAS :

    1013023-42-1

  • Molecular Formula : C30H26ClNO3

  • Molecular Weight : 483.99

Enquire
Details
PAI 13 004048

(S,E)-1-(2-(3-Chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)phenyl)ethan-1-one

(S,E)-1-(2-(3-Chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)phenyl)ethan-1-one

  • Catalogue No.:PAI 13 004048

  • CAS :

    1013023-50-1

  • Molecular Formula : C28H23Cl2NO

  • Molecular Weight : 460.4

Enquire
Details
PAI 13 004049

(R,E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl 4-methylbenzenesulfonate

(R,E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl 4-methylbenzenesulfonate

  • Catalogue No.:PAI 13 004049

  • CAS :

    NA

  • Molecular Formula : C35H30ClNO4S

  • Molecular Weight : 596.14

Enquire
Details
PA 13 0531035

Methyl (S,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-hydroxypropyl)benzoate Hydrate

Methyl (S,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-hydroxypropyl)benzoate Hydrate

  • Catalogue No.:PA 13 0531035

  • CAS :

    287930-78-3

  • Molecular Formula : C28H26ClNO4

  • Molecular Weight : 475.97

Enquire
Details
PA 13 0531036

2-((E)-3-((1R)-1-(((1-(Carboxymethyl)cyclopropyl)methyl)sulfinyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)styryl)-7-chloroquinoline 1-oxide

2-((E)-3-((1R)-1-(((1-(Carboxymethyl)cyclopropyl)methyl)sulfinyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)styryl)-7-chloroquinoline 1-oxide

  • Catalogue No.:PA 13 0531036

  • CAS :

    NA

  • Molecular Formula : C35H36ClNO5S

  • Molecular Weight : 618.19

Enquire
Details
PA 13 0531038

2-(1-(((R)-((R)-2-(7-Chloroquinolin-2-yl)-1-(3-((E)-3-(2-(2-hydroxypropan-2-yl)phenyl)prop-1-en-1-yl)phenyl)ethyl)sulfinyl)methyl)cyclopropyl)acetic Acid

2-(1-(((R)-((R)-2-(7-Chloroquinolin-2-yl)-1-(3-((E)-3-(2-(2-hydroxypropan-2-yl)phenyl)prop-1-en-1-yl)phenyl)ethyl)sulfinyl)methyl)cyclopropyl)acetic Acid

  • Catalogue No.:PA 13 0531038

  • CAS :

    NA

  • Molecular Formula : C35H36ClNO4S

  • Molecular Weight : 602.19

Enquire
Details
PA USP 1A06820

Montelukast Sulfoxide ([1-[[[1-[3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(1-hydroxy -1methylethyl)phenyl]propyl]sulfinyl]methyl]cyclopropyl]acetic Acid) (1A06820)

Montelukast Sulfoxide ([1-[[[1-[3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(1-hydroxy -1methylethyl)phenyl]propyl]sulfinyl]methyl]cyclopropyl]acetic Acid) (1A06820)

  • Catalogue No.:PA USP 1A06820

  • CAS :

    1152185-58-4

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA USP 1A07100

Montelukast Ketone (1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone;(E)-1-{3-[2-(7-Chloroquinolin-2-yl)vinyl]phenyl}-3-[2-(2-hydroxypropan-2-yl)phenyl]propan-1-one) (1A07100)

Montelukast Ketone (1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone;(E)-1-{3-[2-(7-Chloroquinolin-2-yl)vinyl]phenyl}-3-[2-(2-hydroxypropan-2-yl)phenyl]propan-1-one) (1A07100)

  • Catalogue No.:PA USP 1A07100

  • CAS :

    1258428-71-5

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA USP 1A05670

Montelukast methylstyrene (1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-methylethenyl)phenyl]propyl]thio]methyl]cyclopropaneacetic Acid) (1A05670)

Montelukast methylstyrene (1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-methylethenyl)phenyl]propyl]thio]methyl]cyclopropaneacetic Acid) (1A05670)

  • Catalogue No.:PA USP 1A05670

  • CAS :

    918972-54-0

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA 13 0531039

Montelukast Acid Impurity

Montelukast Acid Impurity

  • Catalogue No.:PA 13 0531039

  • CAS :

    NA

  • Molecular Formula : C33H28ClNNa2O4S

  • Molecular Weight : 616.08

Enquire
Details
Periodic Table- Pharmaffiliates

Calculators
Periodic Table- Pharmaffiliates

Contact us

Ask A Scientist-Pharmaffiliates

Ask a Scientist
General Help

General Help
CPHI INDIA- 28, 30 November