Montelukast Pharmaceutical Reference Standards

MONTELUKAST INTERMEDIATES, INTERMEDIATES
(E)-Montelukast (3R)-hydroxy propanol


CAT No. : CS-T-51002
Mol F. : C29H28ClNO2
Mol W. : 458.00 g/mol
Cas No. : 150026-75-8
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
(S) Montelukast


CAT No. : CS-O-05738
Mol F. : C₃₅H₃₆ClNO₃S
Mol W. : 586.18 g/mol
Cas No. : 220927-27-5
Stock : IN-Stock

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
(S)-Montelukast Sodium


CAT No. : CS-O-05826
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
(S,E)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl methanesulfonate


CAT No. : CS-O-40934
Mol F. : C30H30ClNO4S
Mol W. : 536.08 g/mol
Cas No. : 807638-71-7
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
(Z)-montelukast sulfoxide


CAT No. : CS-O-40815
Mol F. : C35H35ClNNaO4S
Mol W. : 624.16 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
2-(3(S)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3- hydroxypropyl) acetophenone


CAT No. : CS-O-45557
Mol F. : C28H24ClNO2
Mol W. : 441.95 g/mol
Cas No. : 144551-23-5
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
2,2-Dimethoxy-d6 Montelukast


CAT No. : CS-T-97579
Mol F. : C37H34D6ClNO3S
Mol W. : 620.27 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
2’-Des(1-hydroxy-1-methylethyl)-2’-methycarboxy Montelukast Hydrochloride


CAT No. : CS-T-16010
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 906107-37-7
Stock : Enquire

MONTELUKAST INTERMEDIATES, INTERMEDIATES
21(R)-Hydroxy Montelukast


CAT No. : CS-T-56246
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 184763-26-6
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
21(R)-Hydroxy Montelukast-d6


CAT No. : CS-T-97419
Mol F. : C35H30D6ClNO4S
Mol W. : 608.22 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST INTERMEDIATES, INTERMEDIATES
21(S)-Hydroxy Montelukast


CAT No. : CS-T-56247
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 184763-29-9
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
21(S)-Hydroxy Montelukast-d6


CAT No. : CS-T-97418
Mol F. : C35H30D6ClNO4S
Mol W. : 608.22 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST INTERMEDIATES, INTERMEDIATES
25-Hydroxy Montelukast


CAT No. : CS-T-28037
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 200804-28-0
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
2-Methoxymethyl Montelukast 1,2-Diol


CAT No. : CS-T-32555
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 184764-27-0
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Cyclopropane-1,1- diylbis(methylene) dimethanesulfonate


CAT No. : CS-O-40933
Mol F. : C₇H₁₄O₆S₂
Mol W. : 258.3 g/mol
Cas No. : 136476-38-5
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Des[3-[[(1-Carboxymethyl)cyclopropyl]methyl]thio]-2-propenyl Montelukast Mesylate


CAT No. : CS-T-52113
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1187586-82-8
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Des[3-[[(1-Carboxymethyl)cyclopropyl]methyl]thio]-2-propenyl Montelukast-d6 Mesylate


CAT No. : CS-T-99311
Mol F. : C30H24D6ClNO4S
Mol W. : 542.12 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Dihydro Montelukast Sodium Salt


CAT No. : CS-T-53076
Mol F. : C₃₅H₃₈ClNO₃S
Mol W. : 588.20 g/mol
Cas No. : 142147-98-6
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Dihydro Montelukast Sodium Salt


CAT No. : CS-O-33060
Mol F. : C35H37ClNNaO3S
Mol W. : 610.18 g/mol
Cas No. : 142147-98-6
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
ent-Montelukast Sodium Salt


CAT No. : CS-T-82793
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 190078-45-6
Stock : Enquire

MONTELUKAST PHARMACEUTICAL STDS., PHARMACEUTICAL STDS.
α-Hydroxy Montelukast


CAT No. : CS-TB-68430
Mol F. : C35H36ClNO4S
Mol W. : 602.18 g/mol
Cas No. : 2045402-27-3
Stock : Enquire

MONTELUKAST INTERMEDIATES, INTERMEDIATES
Methoxy Montelukast


CAT No. : CS-T-79803
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1351973-25-5
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Methoxy-d3 Montelukast


CAT No. : CS-T-97319
Mol F. : C36H35D3ClNO3S
Mol W. : 603.23 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Methoxy-d3 Montelukast Methyl Ester-d3


CAT No. : CS-T-102722
Mol F. : C37H34D6ClNO3S
Mol W. : 620.27 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST API STANDARDS, API STANDARDS
Montelukast Acid


CAT No. : CS-O-01846
Mol F. : C35H36ClNO3S
Mol W. : 586.2 g/mol
Cas No. : 158966-92-8
Stock : IN-Stock

MONTELUKAST CHIRAL, CHIRAL
Montelukast (3R)-Hydroxy Benzoate


CAT No. : CS-O-07942
Mol F. : C28H24ClNO3
Mol W. : 457.95 g/mol
Cas No. : 150026-72-5
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast (3R)-Hydroxy Propanol


CAT No. : CS-EO-02223
Mol F. : C29H28ClNO2
Mol W. : 458 g/mol
Cas No. : 142542-48-1
Stock : Enquire

MONTELUKAST INTERMEDIATES, INTERMEDIATES
Montelukast (3S)-Hydroxy benzoate


CAT No. : CS-O-10644
Mol F. : C28H24ClNO3
Mol W. : 457.94 g/mol
Cas No. : 142569-69-5
Stock : IN-Stock

MONTELUKAST INTERMEDIATES, INTERMEDIATES
Montelukast (3S)-Hydroxy Methylketone


CAT No. : CS-T-50998
Mol F. : Montelukast
Mol W. : C28H24ClNO2 g/mol
Cas No. : 184764-13-4
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast (3S)-hydroxy propanol


CAT No. : CS-T-51001
Mol F. : C29H28ClNO2
Mol W. : 458.00 g/mol
Cas No. : 287930-77-2
Stock : Enquire

MONTELUKAST INTERMEDIATES, INTERMEDIATES
Montelukast 1,2-Diol


CAT No. : CS-T-58948
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 186352-97-6
Stock : Enquire

MONTELUKAST INTERMEDIATES, INTERMEDIATES
Montelukast 3-oxo benzoate


CAT No. : CS-T-12520
Mol F. : C28H22ClNO3
Mol W. : 455.94 g/mol
Cas No. : 149968-11-6
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast 3-Oxo Propanol Impurity


CAT No. : CS-O-31224
Mol F. : C₂₉H₂₆ClNO₂
Mol W. : 455.98 g/mol
Cas No. : 1258428-71-5
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Acid impurity


CAT No. : CS-O-47527
Mol F. : C33H28ClNNa2O4S
Mol W. : 616.08 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast Acyl-b-D-glucuronide-d6


CAT No. : CS-T-102203
Mol F. : C41H38D6ClNO9S
Mol W. : 768.34 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST GLUCURONIDES, GLUCURONIDES
Montelukast acyl-Beta-D-glucuronide


CAT No. : CS-O-14559
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 188717-17-1
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Bis-sulfide


CAT No. : CS-T-58944
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1242260-05-4
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Chloroalcohol impurity


CAT No. : CS-EO-03095
Mol F. : C29H27CI2NO
Mol W. : 476.4 g/mol
Cas No. : 880769-28-8
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Cyclizate Ether impurity


CAT No. : CS-T-58953
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 168214-67-3
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast Cyclized Ether impurity-d6


CAT No. : CS-T-99149
Mol F. : C29H20D6ClNO
Mol W. : 446.01 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast cyclopropaneacetamide (Impurity)


CAT No. : CS-T-58943
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 866923-63-9
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast Cyclopropaneacetamide-d6 (Impurity)


CAT No. : CS-T-99151
Mol F. : C35H31D6ClN2O2S
Mol W. : 591.24 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Cyclopropaneacetonitrile


CAT No. : CS-T-58954
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 866923-62-8
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast Cyclopropaneacetonitrile-d6


CAT No. : CS-T-97276
Mol F. : C35H29D6ClN2OS
Mol W. : 573.22 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast D6


CAT No. : CS-O-06791
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 1093746-29-2
Stock : IN-Stock

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast D6 sodium


CAT No. : CS-O-03176
Mol F. : C₃₅H₂₉D₆ClNNaO₃S
Mol W. : 614.20 g/mol
Cas No. : 151767-02-1 (Unlabelled)
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Dehydro Impurity


CAT No. : CS-EO-00294
Mol F. : C₂₉H₂₆ClNO
Mol W. : 439.98 g/mol
Cas No. : 168214-68-4
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Dicarboxylic Acid


CAT No. : CS-T-58952
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 213380-27-9
Stock : Enquire

MONTELUKAST BP STANDARDS, BP STANDARDS
Montelukast Dicyclohexylamine (1147)


CAT No. : CS-ET-00083
Mol F. : C47H59ClN2O3S
Mol W. : 767.5 g/mol
Cas No. : 577953-88-9
Stock : Enquire

MONTELUKAST USP STANDARDS, USP STANDARDS
Montelukast Dicyclohexylamine (R035A0)


CAT No. : CS-EB-01421
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 577953-88-9
Stock : Enquire

MONTELUKAST FINE CHEMICALS, FINE CHEMICALS
Montelukast Dicyclohexylamine Salt


CAT No. : CS-T-58945
Mol F. : C₄₇H₅₉ClN₂O₃S
Mol W. : 767.50 g/mol
Cas No. : 577953-88-9
Stock : IN-Stock

MONTELUKAST SECONDARY STANDARDS, SECONDARY STANDARDS
Montelukast Dicyclohexylamine(Secondary Standards traceble to USP)


CAT No. : CS-ER-01421
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 577953-88-9
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Diol


CAT No. : CS-O-32351
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 142569-70-8
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP impurity A


CAT No. : CS-O-07943
Mol F. : C35H35ClNNaO3S
Mol W. : 608.17 g/mol
Cas No. : 190078-45-6
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP Impurity B


CAT No. : CS-O-10009
Mol F. : C₃₅H₃₄ClNO₂S
Mol W. : 568.17 g/mol
Cas No. : 918972-54-0
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP Impurity C (Mixture of isomers)


CAT No. : CS-O-10008
Mol F. : C35H36ClNO4S
Mol W. : 602.18 g/mol
Cas No. : 909849-96-3
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP impurity D


CAT No. : CS-O-11858
Mol F. : C₄₁H₄₆ClNO₅S₂
Mol W. : 732.39 g/mol
Cas No. : 1187586-61-3
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP Impurity D+E (Michael Adduct 1+2)


CAT No. : CS-O-34801
Mol F. : C₄₁H₄₆ClNO₅S₂
Mol W. : 732.39 g/mol
Cas No. : 2125943-58-8
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP impurity E


CAT No. : CS-O-11859
Mol F. : C₄₁H₄₆ClNO₅S₂
Mol W. : 732.39 g/mol
Cas No. : 1187586-58-8
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP impurity F


CAT No. : CS-O-11860
Mol F. : C₃₄H₃₂ClNO₃S
Mol W. : 570.14 g/mol
Cas No. : 937275-23-5
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP impurity G


CAT No. : CS-O-11861
Mol F. : C₃₅H₃₆ClNO₃S
Mol W. : 586.18 g/mol
Cas No. : 774538-96-4
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP impurity H


CAT No. : CS-O-11862
Mol F. : C₃₄H₃₂ClNO₄S
Mol W. : 586.14 g/mol
Cas No. : 851755-56-1
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast EP impurity I


CAT No. : CS-O-11863
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire

MONTELUKAST EP STANDARDS, EP STANDARDS
Montelukast for peak identification (Y0001435)


CAT No. : CS-EG-01686
Mol F. : C35H35ClNNaO3S
Mol W. : 608.17 g/mol
Cas No. : 151767-02-1
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Gem-dimethylmethylene Analogue


CAT No. : CS-T-83464
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 162489-70-5
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Ketocarbinol Impurity


CAT No. : CS-EO-01049
Mol F. : C34H32ClNO4S
Mol W. : 586.14 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast methanesulfonate IMPURITY


CAT No. : CS-O-43280
Mol F. : C30H30ClNO4S
Mol W. : 536.08 g/mol
Cas No. : 920739-17-9
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Methyl Ester


CAT No. : CS-T-58955
Mol F. : C36H38ClNO3S
Mol W. : 600.2 g/mol
Cas No. : 855473-51-7
Stock : Enquire

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast Methyl Ester-d3


CAT No. : CS-T-99148
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire

MONTELUKAST API STANDARDS, API STANDARDS
Montelukast Potassium


CAT No. : CS-EO-03707
Mol F. : C35H35ClNO3S : K
Mol W. : 585.2 : 39.1 g/mol
Cas No. : 577953-87-8
Stock : Enquire

MONTELUKAST API STANDARDS, API STANDARDS
Montelukast racemate


CAT No. : CS-O-48156
Mol F. : .
Mol W. : . g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST USP STANDARDS, USP STANDARDS
Montelukast Racemate (R031T0)


CAT No. : CS-EB-01423
Mol F. : .
Mol W. : . g/mol
Cas No. : 577953-88-9
Stock : Enquire

MONTELUKAST EP STANDARDS, EP STANDARDS
Montelukast racemate (Y0001433)


CAT No. : CS-EG-01684
Mol F. : 767.5 g/mol
Mol W. : C47H59ClN2O3S g/mol
Cas No. : 577953-88-9
Stock : Enquire

MONTELUKAST SECONDARY STANDARDS, SECONDARY STANDARDS
Montelukast Racemate(Secondary Standards traceble to USP)


CAT No. : CS-ER-01423
Mol F. : Not Available
Mol W. : Not Available
Cas No. : 577953-88-9
Stock : Enquire

MONTELUKAST API STANDARDS, API STANDARDS
Montelukast sodium


CAT No. : CS-O-01855
Mol F. : C₃₅H₃₅ClNNaO₃S
Mol W. : 608.17 g/mol
Cas No. : 151767-02-1
Stock : IN-Stock

MONTELUKAST BP STANDARDS, BP STANDARDS
Montelukast sodium


CAT No. : CS-ET-00158
Mol F. : C₃₅H₃₅ClNNaO₃S
Mol W. : 608.17 g/mol
Cas No. : 151767-02-1
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast sodium racemate


CAT No. : CS-EO-00151
Mol F. : C35H35ClNNaO3S
Mol W. : 608.17 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Sulfone


CAT No. : CS-T-58950
Mol F. : C₃₅H₃₆ClNO₅
Mol W. : 618.18 g/mol
Cas No. : 1266620-74-9
Stock : IN-Stock

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast sulfone N-Oxide


CAT No. : CS-P-08841
Mol F. : C35H35ClNO6S
Mol W. : 633.19 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST IMPURITIES, IMPURITIES
Montelukast Sulphoxide


CAT No. : CS-AB-00066
Mol F. : C₃₅H₃₆ClNO₄S
Mol W. : 602.18 g/mol
Cas No. : 1152185-58-4
Stock : IN-Stock

MONTELUKAST STABLE ISOTOPES, STABLE ISOTOPES
Montelukast-d6 Bis-sulfide (mixture of diastereomers)


CAT No. : CS-T-99150
Mol F. : C41H40D6ClNO5S2
Mol W. : 738.43 g/mol
Cas No. : Not Available
Stock : Enquire

MONTELUKAST CHIRAL, CHIRAL
R-Montelukast Na


CAT No. : CS-O-07941
Mol F. : Not Available
Mol W. : Not Available
Cas No. : Not Available
Stock : Enquire