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.
Montelukast cis Isomer Sodium Salt
Catalogue No.:PA 13 0530071
CAS :
Molecular Formula : C35H35ClNNaO3S
Molecular Weight : 608.17
Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((methylsulfonyl)oxy)propyl)benzoate
Catalogue No.:PAI 13 004026
Molecular Formula : C29H26ClNO5S
Molecular Weight : 536.04
Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(tosyloxy)propyl)benzoate
Catalogue No.:PAI 13 004027
Molecular Formula : C35H30ClNO5S
Molecular Weight : 612.14
(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
Molecular Formula : C29H28ClNO2
Molecular Weight : 458
(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
Molecular Formula : C34H32ClNO4S
Molecular Weight : 586.14
Montelukast Sulphoxide (IMPM029)
Catalogue No.:PA IMPM029
Molecular Formula : NA
Molecular Weight : NA
Methyl (R,E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((4-nitrobenzoyl)oxy)propyl)benzoate
Catalogue No.:PAI 13 004029
Molecular Formula : C35H27ClN2O6
Molecular Weight : 607.06
Montelukast Dimer Impurity
Catalogue No.:PA 13 0531029
Molecular Formula : C28H18Cl2N2
Molecular Weight : 453.37
(E)-1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl methanesulfonate
Catalogue No.:PAI 13 004030
Molecular Formula : C30H30ClNO4S
Molecular Weight : 536.08
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
Molecular Formula : C36H38ClNO3S
Molecular Weight : 600.21
(E)-1-(2-(3-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-hydroxypropyl)phenyl)ethan-1-one
Catalogue No.:PAI 13 004032
Molecular Formula : C28H24ClNO2
Molecular Weight : 441.96
(E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl diphenyl Phosphate
Catalogue No.:PAI 13 004033
Molecular Formula : C40H33ClNO5P
Molecular Weight : 674.13
Methyl 2-(1-(mercaptomethyl)cyclopropyl)acetate
Catalogue No.:PAI 13 004034
Molecular Formula : C7H12O2S
Molecular Weight : 160.23
Montelukast Styrene (IMPM068)
Catalogue No.:PA IMPM068
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
Molecular Formula : C35H34ClNO4S
Molecular Weight : 600.17
Montelukast Methyl Ether
Catalogue No.:PA 13 0531030
Montelukast S-Sulfoxide
Catalogue No.:PA 13 0531031
Molecular Formula : C35H36ClNO4S
Molecular Weight : 602.19
Montelukast Ketocarbinol Impurity
Catalogue No.:PA 13 0531032
(E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl methanesulfonate
Catalogue No.:PAI 13 004036
Molecular Formula : C29H26ClNO4S
Molecular Weight : 520.04
Methyl 1-(hydroxymethyl)cyclopropane-1-carboxylate
Catalogue No.:PAI 13 004037
Molecular Formula : C6H10O3
Molecular Weight : 130.14
Methyl 1-formylcyclopropanecarboxylate
Catalogue No.:PAI 13 004038
Molecular Formula : C6H8O3
Molecular Weight : 128.13
Methyl 1-(cyano(hydroxy)methyl)cyclopropane-1-carboxylate
Catalogue No.:PAI 13 004039
Molecular Formula : C7H9NO3
Molecular Weight : 155.15
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
Molecular Formula : C35H34ClNO3S
Molecular Weight : 584.17
Methyl (E)-2-(3-chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)benzoate
Catalogue No.:PAI 13 004041
Molecular Formula : C28H23Cl2NO2
Molecular Weight : 476.4
Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-((diphenoxyphosphoryl)oxy)propyl)benzoate
Catalogue No.:PAI 13 004042
Molecular Formula : C40H33ClNO6P
Molecular Weight : 690.13
Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(((trifluoromethyl)sulfonyl)oxy)propyl)benzoate
Catalogue No.:PAI 13 004043
Molecular Formula : C29H23ClF3NO5S
Molecular Weight : 590.01
2-(1-(Mercaptomethyl)cyclopropyl)acetamide
Catalogue No.:PA 13 0531034
Molecular Formula : C6H11NOS
Molecular Weight : 145.22
Methyl (E)-2-(3-bromo-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)benzoate
Catalogue No.:PAI 13 004044
Molecular Formula : C28H23BrClNO2
Molecular Weight : 520.85
(E)-1-(2-(3-Chloro-3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl)phenyl)ethan-1-one
Catalogue No.:PAI 13 004045
Molecular Formula : C28H23Cl2NO
Molecular Weight : 460.4
Methyl (E)-2-(3-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(tosyloxy)propyl)benzoate
Catalogue No.:PAI 13 004046
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
Molecular Formula : C41H46ClNO5S2
Molecular Weight : 732.39
(S,E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl acetate
Catalogue No.:PAI 13 004047
Molecular Formula : C30H26ClNO3
Molecular Weight : 483.99
(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
(R,E)-3-(2-Acetylphenyl)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)propyl 4-methylbenzenesulfonate
Catalogue No.:PAI 13 004049
Molecular Formula : C35H30ClNO4S
Molecular Weight : 596.14
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