Montelukast Impurity 8

SZ CAT No:	SZ-M031081
CAS No	136476-38-5
Mol.F.	C7H14O6S2
Mol.Wt.	258.3
Inv. Status	Custom Synthesis

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Chemical Name: Cyclopropane-1,1-diylbis(methylene) dimethanesulfonate

Shipping Temperature: Ambient

HSN Code: 38229010

Country of Origin: India

Smiles: C[S](OCC1(CC1)CO[S](C)(=O)=O)(=O)=O

Method development and validation for the simultaneous estimation of montelukast and acebrophylline in bulk and tablet dosage forms by RP-HPLC
By Ankitha, M.; Ashitha, S.; Sri, Ragasudha A.; Latha, Madhavi P. V.; Devi, Uma P.
From Journal of Global Trends in Pharmaceutical Sciences (2021), 12(1), 9173-9179

Montelukast microsuspension with hypromellose for improved stability and oral absorption
By Lee, Ha Ryeong; Park, Hyun Jin; Park, Jun Soo; Park, Dong Woo; Ho, Myoung Jin; Kim, Dong Yoon; Lee, Hyo Chun; Kim, Eun Jeong; Song, Woo Heon; Park, Jun Sang; et al
From International Journal of Biological Macromolecules (2021), 183, 1732-1742

Analytical method development and validation for simultaneous estimation of Bilastine and Montelukast sodium by UV spectrophotometry
By Raj, R. Mohan; Sankar, A. S. K.; Vetrichelvan, T.
From World Journal of Pharmacy and Pharmaceutical Sciences (2021), 10(1), 680-687

Montelukast Impurity 8 is chemically Cyclopropane-1,1-diylbis(methylene) dimethanesulfonate. Montelukast Impurity 8 is supplied with detailed characterization data compliant with regulatory guideline. Montelukast Impurity 8 can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Montelukast.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.

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Montelukast (3S)-Hydroxy Benzoate

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Montelukast (3S)-Hydroxy Methoxymethoxy Impurity

SZ CAT No:	: SZ-M031047
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Montelukast (3S)-Hydroxy Methylketone

SZ CAT No:	: SZ-M031048
CAS No	: 184764-13-4
Mol.F.	: C28H24ClNO2
Mol.Wt.	: 442.0
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Montelukast (3S)-Hydroxy Propanol

SZ CAT No:	: SZ-M031049
CAS No	: 142569-70-8
Mol.F.	: C29H28ClNO2
Mol.Wt.	: 458.0
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Montelukast (R)-Hydroxy Metabolite

SZ CAT No:	: SZ-M031050
CAS No	: 184763-26-6
Mol.F.	: C35H36ClNO4S
Mol.Wt.	: 602.2
Inv. Status	: Custom Synthesis

Montelukast (S)-Hydroxy Metabolite

SZ CAT No:	: SZ-M031051
CAS No	: 184763-29-9
Mol.F.	: C35H36ClNO4S
Mol.Wt.	: 602.2
Inv. Status	: Custom Synthesis

Montelukast 1,2-Diol

SZ CAT No:	: SZ-M031052
CAS No	: 186352-97-6
Mol.F.	: C35H36ClNO4S
Mol.Wt.	: 602.2
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Montelukast 3-Oxo Benzoate

SZ CAT No:	: SZ-M031053
CAS No	: 149968-11-6
Mol.F.	: C28H22ClNO3
Mol.Wt.	: 455.9
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Montelukast

SZ CAT No:	: SZ-M031000
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Montelukast Acid Methyl Ester

SZ CAT No:	: SZ-M031054
CAS No	: 855473-51-7
Mol.F.	: C36H38ClNO3S
Mol.Wt.	: 600.2
Inv. Status	: In Stock

Montelukast Acyl-β-D-Glucuronide Acetate

SZ CAT No:	: SZ-M031055
CAS No	: 188717-17-1
Mol.F.	: C43H48ClNO11S
Mol.Wt.	: 822.4
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Montelukast Amide

SZ CAT No:	: SZ-M031056
CAS No	: 866923-63-9
Mol.F.	: C35H37ClN2O2S
Mol.Wt.	: 585.2
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Montelukast Dicarboxylic Acid

SZ CAT No:	: SZ-M031057
CAS No	: 213380-27-9
Mol.F.	: C35H34ClNO5S
Mol.Wt.	: 616.2
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Montelukast Dicyclohexylamine

SZ CAT No:	: SZ-M031058
CAS No	: 577953-88-9
Mol.F.	: C35H36ClNO3S : C12H23N
Mol.Wt.	: 586.2 : 181.3
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Montelukast Dihydro Impurity

SZ CAT No:	: SZ-M031059
CAS No	: 142147-98-6
Mol.F.	: C35H38ClNO3S : Na
Mol.Wt.	: 588.2 : 23.0
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Rel. CAS No	: 142147-67-9 (Free base)

Montelukast Disulfide Diacid Impurity

SZ CAT No:	: SZ-M031060
CAS No	: 162515-67-5
Mol.F.	: C12H18O4S2
Mol.Wt.	: 290.4
Inv. Status	: In Stock

Montelukast Disulfide Dimethyl Ester

SZ CAT No:	: SZ-M031061
CAS No	: 1446481-28-2
Mol.F.	: C14H22O4S2
Mol.Wt.	: 318.5
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Montelukast Sodium EP Impurity A

SZ CAT No:	: SZ-M031021
CAS No	: 190078-45-6
Mol.F.	: C35H35ClNNaO3S
Mol.Wt.	: 608.2
Inv. Status	: In Stock
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Montelukast EP Impurity B

SZ CAT No:	: SZ-M031022
CAS No	: 918972-54-0
Mol.F.	: C35H34ClNO2S
Mol.Wt.	: 568.2
Inv. Status	: In Stock
Rel. CAS No	: 1146137-52-1 (Na salt)

Montelukast EP Impurity D

SZ CAT No:	: SZ-M031024
CAS No	: 1187586-61-3
Mol.F.	: C41H46ClNO5S2
Mol.Wt.	: 732.4
Inv. Status	: In Stock

Montelukast EP Impurity E

SZ CAT No:	: SZ-M031025
CAS No	: 1187586-58-8
Mol.F.	: C41H46ClNO5S2
Mol.Wt.	: 732.4
Inv. Status	: In Stock

Montelukast EP Impurity F

SZ CAT No:	: SZ-M031026
CAS No	: 937275-23-5
Mol.F.	: C34H32ClNO3S
Mol.Wt.	: 570.1
Inv. Status	: In Stock

Montelukast EP Impurity G

SZ CAT No:	: SZ-M031027
CAS No	: 774538-96-4
Mol.F.	: C35H36ClNO3S
Mol.Wt.	: 586.2
Inv. Status	: In Stock
Rel. CAS No	: 1428448-96-7 (Na salt)

Montelukast EP Impurity H

SZ CAT No:	: SZ-M031028
CAS No	: 851755-56-1
Mol.F.	: C34H32ClNO4S
Mol.Wt.	: 586.1
Inv. Status	: In Stock
Rel. CAS No	: 2244776-97-2 (Na salt) ; 906107-37-7 (HCl salt)

Montelukast EP Impurity I

SZ CAT No:	: SZ-M031029
CAS No	: 2045402-27-3
Mol.F.	: C35H36ClNO4S
Mol.Wt.	: 602.2
Inv. Status	: Out of Stock

Montelukast Ether Impurity

SZ CAT No:	: SZ-M031030
CAS No	: 168214-67-3
Mol.F.	: C29H26ClNO
Mol.Wt.	: 440.0
Inv. Status	: In Stock

Montelukast Ketocarbinol Impurity

SZ CAT No:	: SZ-M031031
CAS No	: 2682015-83-2
Mol.F.	: C34H32ClNO4S
Mol.Wt.	: 586.1
Inv. Status	: Custom Synthesis

Montelukast Ketone Impurity

SZ CAT No:	: SZ-M031032
CAS No	: 1258428-71-5
Mol.F.	: C29H26ClNO2
Mol.Wt.	: 456.0
Inv. Status	: In Stock

Montelukast Lactone

SZ CAT No:	: SZ-M031033
CAS No	: 1100617-38-6
Mol.F.	: C27H20ClNO2
Mol.Wt.	: 425.9
Inv. Status	: Custom Synthesis

Montelukast Mercapto Acid Impurity

SZ CAT No:	: SZ-M031034
CAS No	: 162515-68-6
Mol.F.	: C6H10O2S
Mol.Wt.	: 146.2
Inv. Status	: In Stock
Rel. CAS No	: 952585-15-8 (Na salt) ; 952585-16-9 (K salt)

Montelukast Methoxymethoxy Impurity

SZ CAT No:	: SZ-M031035
CAS No	: 184764-27-0
Mol.F.	: C37H40ClNO5S
Mol.Wt.	: 646.2
Inv. Status	: Custom Synthesis

Montelukast Methyl Ether

SZ CAT No:	: SZ-M031036
CAS No	: 1351973-25-5
Mol.F.	: C36H38ClNO3S
Mol.Wt.	: 600.2
Inv. Status	: In Stock

Montelukast Nitrile Impurity

SZ CAT No:	: SZ-M031037
CAS No	: 866923-62-8
Mol.F.	: C35H35ClN2OS
Mol.Wt.	: 567.2
Inv. Status	: In Stock

Montelukast Racemate

SZ CAT No:	: SZ-M031038
CAS No	: 220927-26-4
Mol.F.	: C35H36ClNO3S
Mol.Wt.	: 586.2
Inv. Status	: In Stock

Montelukast Sodium

SZ CAT No:	: SZ-M031039
CAS No	: 151767-02-1
Mol.F.	: C35H35ClNNaO3S
Mol.Wt.	: 608.2
Inv. Status	: In Stock
Rel. CAS No	: 158966-92-8 (free base) ; 577953-87-8 (K salt); 577953-88-9 (Dicyclohexylamine salt)

Montelukast Sulfone

SZ CAT No:	: SZ-M031040
CAS No	: 1266620-74-9
Mol.F.	: C35H36ClNO5S
Mol.Wt.	: 618.2
Inv. Status	: Custom Synthesis