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.
stdClass Object ( [pname] => Montelukast - API Standards [catalogue_number] => PA 13 53000 [category_ids] => ,69,78,70,82,88, [chemical_name] => [weight] => 586.18 [form] => C35H36ClNO3S [cas] => 158966-92-8 [pslug] => 158966-92-8-montelukast-api-pa1353000 [latest_product] => 0 [linkproducts] => 1 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53000
CAS :
Molecular Formula : C35H36ClNO3S
Molecular Weight : 586.18
stdClass Object ( [pname] => Montelukast Sodium - API Standards [catalogue_number] => PA 13 53510 [category_ids] => ,69,78,70,82,88, [chemical_name] => [weight] => 608.17 [form] => C35H35ClNNaO3S [cas] => 151767-02-1 [pslug] => 151767-02-1-montelukast-sodium-api-standards-pa1353510 [latest_product] => 0 [linkproducts] => 1 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53510
Molecular Formula : C35H35ClNNaO3S
Molecular Weight : 608.17
stdClass Object ( [pname] => Methyl 2-(3-{3-[2-(7-chloroquinolin-2-yl)vinyl]phenyl}-3-oxopropyl)benzoate [catalogue_number] => PA 13 53550 [category_ids] => ,80,69,78,70,82, [chemical_name] => [weight] => 455.93 [form] => C28H22ClNO3 [cas] => 133791-17-0 [pslug] => 133791-17-0-methyl-2-3-3-2-7-chloroquinolin-2-yl-vinyl-phenyl-3-oxopropyl-benzoate-pa1353550 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53550
Molecular Formula : C28H22ClNO3
Molecular Weight : 455.93
stdClass Object ( [pname] => Montelukast Disulfide Impurity [catalogue_number] => PA 13 53580 [category_ids] => ,69,78,70,82,88, [chemical_name] => [weight] => 290.4 [form] => C12H18O4S2 [cas] => 162515-67-5 [pslug] => 162515-67-5-montelukast-disulfide-impurity-pa1353580 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53580
Molecular Formula : C12H18O4S2
Molecular Weight : 290.4
stdClass Object ( [pname] => Montelukast Dicyclohexylamine [catalogue_number] => PA 13 53600 [category_ids] => ,69,78,70,82,88, [chemical_name] => [weight] => 767.5 [form] => C47H59ClN2O3S [cas] => 577953-88-9 [pslug] => 577953-88-9-montelukast-dicyclohexylamine-pa1353600 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53600
Molecular Formula : C47H59ClN2O3S
Molecular Weight : 767.5
stdClass Object ( [pname] => Montelukast Dihydro Impurity [catalogue_number] => PA 13 53610 [category_ids] => ,69,75,78,70,82,88, [chemical_name] => [weight] => 610.18 [form] => C35H37ClNNaO3S [cas] => 142147-98-6 [pslug] => 142147-98-6-montelukast-dihydro-impurity-pa1353610 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53610
Molecular Formula : C35H37ClNNaO3S
Molecular Weight : 610.18
stdClass Object ( [pname] => Montelukast Cyclopropaneacetonitrile [catalogue_number] => PA 13 53640 [category_ids] => ,69,78,70,82,88, [chemical_name] => [weight] => 567.18 [form] => C35H35ClN2OS [cas] => 866923-62-8 [pslug] => 866923-62-8-montelukast-cyclopropaneacetonitrile-pa1353640 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53640
Molecular Formula : C35H35ClN2OS
Molecular Weight : 567.18
stdClass Object ( [pname] => Montelukast 3-Oxo Propanol [catalogue_number] => PA 13 53660 [category_ids] => 88,69,75,82,78,70 [chemical_name] => [weight] => 455.98 [form] => C29H26ClNO2 [cas] => 1258428-71-5 [pslug] => 1258428-71-5-montelukast-3-oxo-propanol-pa1353660 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53660
Molecular Formula : C29H26ClNO2
Molecular Weight : 455.98
stdClass Object ( [pname] => Montelukast (3R)-Hydroxy Propanol [catalogue_number] => PA 13 53680 [category_ids] => 80,71,69,70,78,82 [chemical_name] => [weight] => 457.99 [form] => C29H28ClNO2 [cas] => 150026-75-8 [pslug] => 150026-75-8-montelukast-3r-hydroxy-propanol-pa1353680 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53680
Molecular Formula : C29H28ClNO2
Molecular Weight : 457.99
stdClass Object ( [pname] => Mixture of (Montelukast Sodium, And Montelukast Methyl Impurity) [catalogue_number] => PA 13 53690 [category_ids] => ,80,69,71,78,70,82, [chemical_name] => [weight] => 1188.41 [form] => C71H76Cl2N2O6S2 [cas] => NA [pslug] => mixture-of-montelukast-sodium-and-montelukast-methyl-impurity-pa1353690 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53690
Molecular Formula : C71H76Cl2N2O6S2
Molecular Weight : 1188.41
stdClass Object ( [pname] => Montelukast (3R)-Hydroxy Benzoate [catalogue_number] => PA 13 53700 [category_ids] => ,80,69,71,78,70,82, [chemical_name] => [weight] => 457.95 [form] => C28H24ClNO2 [cas] => 150026-72-5 [pslug] => 150026-72-5-montelukast-3r-hydroxy-benzoate-pa1353700 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53700
Molecular Formula : C28H24ClNO2
Molecular Weight : 457.95
stdClass Object ( [pname] => Dihydro Montelukast [catalogue_number] => PA 13 53740 [category_ids] => 82,78,75,70,69,88 [chemical_name] => [weight] => 588.2 [form] => C35H38ClNO3S [cas] => 142147-67-9 [pslug] => 142147-67-9-dihydro-montelukast-pa1353740 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53740
Molecular Formula : C35H38ClNO3S
Molecular Weight : 588.2
stdClass Object ( [pname] => 2,2-Dimethoxy-d6 Montelukast [catalogue_number] => PA STI 033730 [category_ids] => ,69,78,70,82,88,98, [chemical_name] => [weight] => 620.27 [form] => C37H34D6ClNO3S [cas] => NA [pslug] => 2-2-dimethoxy-d6-montelukast-pasti033730 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA STI 033730
Molecular Formula : C37H34D6ClNO3S
Molecular Weight : 620.27
stdClass Object ( [pname] => 21(R)-Hydroxy Montelukast-d6 [catalogue_number] => PA STI 050340 [category_ids] => ,69,98,76,75,78,70,82,88, [chemical_name] => [weight] => 608.22 [form] => C35H30D6ClNO4S [cas] => NA [pslug] => 21-r-hydroxy-montelukast-d6-pasti050340 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA STI 050340
Molecular Formula : C35H30D6ClNO4S
Molecular Weight : 608.22
stdClass Object ( [pname] => 21(S)-Hydroxy Montelukast-d6 [catalogue_number] => PA STI 050350 [category_ids] => ,69,98,76,75,78,70,82,88, [chemical_name] => [weight] => 608.22 [form] => C35H30D6ClNO4S [cas] => NA [pslug] => 21-s-hydroxy-montelukast-d6-pasti050350 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA STI 050350
stdClass Object ( [pname] => Methoxy-d3 Montelukast [catalogue_number] => PA STI 059630 [category_ids] => ,69,75,98,78,70,82,88, [chemical_name] => [weight] => 603.23 [form] => C36H35D3ClNO3S [cas] => NA [pslug] => methoxy-d3-montelukast-pasti059630 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA STI 059630
Molecular Formula : C36H35D3ClNO3S
Molecular Weight : 603.23
stdClass Object ( [pname] => Montelukast Cyclopropaneacetonitrile-d6 [catalogue_number] => PA STI 066230 [category_ids] => ,69,98,78,70,82,88, [chemical_name] => [weight] => 573.22 [form] => C35H29D6ClN2OS [cas] => NA [pslug] => montelukast-cyclopropaneacetonitrile-d6-pasti066230 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA STI 066230
Molecular Formula : C35H29D6ClN2OS
Molecular Weight : 573.22
stdClass Object ( [pname] => 2-[(3S)-3-(Acetyloxy)-1-bromo-3-[3-[(1E)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]propyl]-benzoic Acid Methyl Ester [catalogue_number] => PA 13 53780 [category_ids] => ,80,69,78,70,82, [chemical_name] => [weight] => 578.88 [form] => C30H25BrClNO4 [cas] => 184763-69-7 [pslug] => 184763-69-7-2-3s-3-acetyloxy-1-bromo-3-3-1e-2-7-chloro-2-quinolinyl-ethenyl-phenyl-propyl-benzoic-acid-methyl-ester-pa1353780 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53780
Molecular Formula : C30H25BrClNO4
Molecular Weight : 578.88
stdClass Object ( [pname] => Montelukast Gem-dimethylmethylene Analogue [catalogue_number] => PA 13 53840 [category_ids] => ,69,74,78,70,82,88, [chemical_name] => [weight] => 588.2 [form] => C35H38ClNO3S [cas] => 162489-70-5 [pslug] => 162489-70-5-montelukast-gem-dimethylmethylene-analogue-pa1353840 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 53840
stdClass Object ( [pname] => 1-((((S)-2-(3-((R)-1-(((1-(Carboxymethyl)cyclopropyl)methyl)thio)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)phenyl)-1-(7-chloroquinolin-2-yl)ethyl)thio)methyl)cyclopropane-1-carboxylic Acid [catalogue_number] => PA 13 0531000 [category_ids] => ,69,88,78,70,82, [chemical_name] => [weight] => 718.36 [form] => C40H44ClNO5S2 [cas] => 1360561-92-7 [pslug] => 1360561-92-7-1-s-2-3-r-1-1-carboxymethyl-cyclopropyl-methyl-thio-3-2-2-hydroxypropan-2-yl-phenyl-propyl-phenyl-1-7-chloroquinolin-2-yl-ethyl-thio-methyl-cyclopropane-1-carboxylic-acid-pa130531000 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531000
Molecular Formula : C40H44ClNO5S2
Molecular Weight : 718.36
stdClass Object ( [pname] => Montelukast Acyl-b-D-glucuronide [catalogue_number] => PA 13 0531008 [category_ids] => ,69,70,75,76,78,82,91,95, [chemical_name] => [weight] => 762.31 [form] => C41H44ClNO9S [cas] => 188717-17-1 [pslug] => 188717-17-1-montelukast-acyl-b-d-glucuronide-pa130531008 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531008
Molecular Formula : C41H44ClNO9S
Molecular Weight : 762.31
stdClass Object ( [pname] => Montelukast Dicarboxylic Acid (Mixture of Diastereomers) [catalogue_number] => PA 13 0531009 [category_ids] => ,91,69,75,76,78,70,82, [chemical_name] => [weight] => 616.17 [form] => C35H34ClNO5S [cas] => 213380-27-9 [pslug] => 213380-27-9-montelukast-dicarboxylic-acid-mixture-of-diastereomers-pa130531009 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531009
Molecular Formula : C35H34ClNO5S
Molecular Weight : 616.17
stdClass Object ( [pname] => 1,1'-[Dithiobis(methylene)]biscyclopropaneacetic Acid Methyl Ester [catalogue_number] => PA 13 0531010 [category_ids] => ,91,69,75,76,78,70,82, [chemical_name] => [weight] => 304.42 [form] => C13H20O4S2 [cas] => 1446481-28-2 [pslug] => 1446481-28-2-1-1'-dithiobis-methylene-biscyclopropaneacetic-acid-methyl-ester-pa130531010 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531010
Molecular Formula : C13H20O4S2
Molecular Weight : 304.42
stdClass Object ( [pname] => Montelukast Ketocarbinol [catalogue_number] => PA 13 0531017 [category_ids] => ,69,78,70,82,88, [chemical_name] => [weight] => 588.16 [form] => C34H34ClNO4S [cas] => NA [pslug] => montelukast-ketocarbinol-pa130531017 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531017
Molecular Formula : C34H34ClNO4S
Molecular Weight : 588.16
stdClass Object ( [pname] => (R)-1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propan-1-ol [catalogue_number] => PA 13 0531028 [category_ids] => ,69,78,70,82, [chemical_name] => [weight] => 458 [form] => C29H28ClNO2 [cas] => 142542-48-1 [pslug] => 142542-48-1-r-1-3-2-7-chloroquinolin-2-yl-vinyl-phenyl-3-2-2-hydroxypropan-2-yl-phenyl-propan-1-ol-pa130531028 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531028
Molecular Weight : 458
stdClass Object ( [pname] => Montelukast Ketocarbinol Impurity [catalogue_number] => PA 13 0531032 [category_ids] => ,69,78,70,82, [chemical_name] => [weight] => 586.14 [form] => C34H32ClNO4S [cas] => 2682015-83-2 [pslug] => 2682015-83-2-montelukast-ketocarbinol-impurity-pa130531032 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531032
Molecular Formula : C34H32ClNO4S
Molecular Weight : 586.14
stdClass Object ( [pname] => 2-(1-(Mercaptomethyl)cyclopropyl)acetamide [catalogue_number] => PA 13 0531034 [category_ids] => ,69,78,70,82, [chemical_name] => [weight] => 145.22 [form] => C6H11NOS [cas] => 162515-69-7 [pslug] => 162515-69-7-2-1-mercaptomethyl-cyclopropyl-acetamide-pa130531034 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 13 0531034
Molecular Formula : C6H11NOS
Molecular Weight : 145.22
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