API Impurities Standard
MICHAEL ADDUCTS 1 AND 2 IMPURITY
Category: Montelukast
- Chemical Name: 1-[[[(1R)-1-[3-[(1R)-1-[[[1-(Carboxymethyl) cyclopropyl] methyl] thio]-2-(7-chloro-2-quinolinyl) ethyl] phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl] thio] methyl]-cyclopropaneacetic acid + 1-[[[(1R)-1-[3-[(1S)-1-[[[1-(Carboxymethyl) cyclopropyl] methyl] thio]-2-(7-chloro-2-quinolinyl) ethyl] phenyl]-3-[2-(1-hydroxy-1- methylethyl) phenyl] propyl] thio] methyl]-cyclopropaneacetic acid
- Molecular Formula: C41H46ClNO5S2
- Molecular Weight: 732.39
- CAS Number: 2125943-58-8
- Batch Number: ALL-MON-MA
- Solubility: MEOH
- Storage: 2-8 °C
- Purity by HPLC: 97.48%
- Melting Point: N.A
- Appearance: Off White Solid
- Inventory Status: IN STOCK-970-103
- Smiles
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Description
Documents 1. COA, HNMR, MASS, HPLC, IR, TGA analysis data will be offered along with products. 2. Quotation validity # 4 weeks 3. GST applicable # 18% 4. Lead time # the custom synthesis products are quoted with an optimistic time-line and actual time-line may vary based on raw material availability, synthetic and purification challenges. 5. The COA attached are for reference only. We will include details in the COA as per your requirement in the release data during dispatch. 6. Kindly mentioned in case of procurement if these products are intended for regulatory deficiency by returned e-mail.
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Montelukast (3R)-Hydroxy Benzoate
Chemical Name: 2-[(3R)-(2-(7-Chloro-2-quinolinyl)-ethen...
CAS No: 150026-72-5
Molecular Formula: C28H24ClNO3
Molecular Weight: 457.95
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Montelukast (3R)-Hydroxy Propanol / Montelukast (3R)-Hydroxy Propanol
Chemical Name: (R)-2-(2-(3-(2-(7-Chloro-2-quinolinyl)-e...
CAS No: 150026-75-8
Molecular Formula: C29H28ClNO2
Molecular Weight: 457.99
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Montelukast (3S)-Chloro Alcohol Impurity
Chemical Name: 2-[2-[(3S)-[3(E)-[2-(7-Chloroquinolin-2-...
CAS No: NA
Molecular Formula: C29H27Cl2NO
Molecular Weight: 476.44
CAT No: ALL-MON-2163
Keywords: Montelukast (3S)-Chloro Alcohol Impurity...
Inventory Status:In Stock-929-103
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Montelukast (3S)-Hydroxy Benzoate
Chemical Name: 2-[(3S)-(2-(7-Chloro-2-quinolinyl)-ethen...
CAS No: 142569-69-5
Molecular Formula: C28H24ClNO3
Molecular Weight: 457.95
CAT No: ALL-MON-2164
Keywords: Montelukast (3S)-Hydroxy Benzoate, 2-[(3...
Inventory Status:In Stock-930-103
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Montelukast (3S)-Hydroxy Methylketone
Chemical Name: 1-[2-[(3S)-3-[3-[(1E)-2-(7-Chloro-2-quin...
CAS No: 184764-13-4
Molecular Formula: C28H24ClNO2
Molecular Weight: 441.1496
CAT No: ALL-MON-2166
Keywords: Montelukast (3S)-Hydroxy Methylketone, 1...
Inventory Status:In Stock-932-103
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Montelukast (3S)-Hydroxy Propanol
Chemical Name: (S)-2-(2-(3-(2-(7-Chloro-2-quinolinyl)-e...
CAS No: 287930-77-2
Molecular Formula: C29H28ClNO2
Molecular Weight: 457.99
CAT No: ALL-MON-2167
Keywords: Montelukast (3S)-Hydroxy Propanol, (S)-2...
Inventory Status:In Stock-933-103
-Hydroxy Metabolite.png)
Montelukast (R)-Hydroxy Metabolite
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: 184763-26-6
Molecular Formula: C35H36ClNO4S
Molecular Weight: 602.18
CAT No: ALL-MON-2168
Keywords: Montelukast (R)-Hydroxy Metabolite, 1-[[...
Inventory Status:In Stock-934-103
-Hydroxy Metabolite.png)
Montelukast (S)-Hydroxy Metabolite
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: 184763-29-9
Molecular Formula: C35H36ClNO4S
Molecular Weight: 602.18
CAT No: ALL-MON-2169
Keywords: Montelukast (S)-Hydroxy Metabolite, 1-[[...
Inventory Status:In Stock-935-103
Montelukast 3-Oxo Benzoate
Chemical Name: 2-[3-[3-[2-(7-Chloro-2-quinolinyl)etheny...
CAS No: 149968-11-6
Molecular Formula: C28H22ClNO3
Molecular Weight: 455.93
CAT No: ALL-MON-2171
Keywords: Montelukast 3-Oxo Benzoate, 2-[3-[3-[2-(...
Inventory Status:In Stock-937-103
Montelukast Acid
Chemical Name: (R-(E))-1-(((1-(3-(2-(7-Chloro-2-quinoli...
CAS No: 158966-92-8
Molecular Formula: C35H36ClNO3S
Molecular Weight: 586.18
CAT No: ALL-MON-2172
Keywords: Montelukast Acid, (R-(E))-1-(((1-(3-(2-(...
Inventory Status:In Stock-938-103
Montelukast Acid Methyl Ester / Montelukast Methyl Ester
Chemical Name: 1-[[[1-[3-[(1E)-2-(7-Chloro-2-quinolinyl...
CAS No: NA
Molecular Formula: C36H38ClNO3S
Molecular Weight: 600.21
CAT No: ALL-MON-2173
Keywords: Montelukast Acid Methyl Ester / Monteluk...
Inventory Status:In Stock-939-103
Montelukast Acid Methyl Ester Methyl Ether
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: NA
Molecular Formula: C37H40ClNO3S
Molecular Weight: 614.24
CAT No: ALL-MON-2174
Keywords: Montelukast Acid Methyl Ester Methyl Eth...
Inventory Status:In Stock-940-103
Montelukast Acid Racemate
Chemical Name: 1-[[[(1RS)-1-[3-[(1E)-2-(7-Chloro-2-quin...
CAS No: NA
Molecular Formula: C35H36ClNO3S
Molecular Weight: 586.18
CAT No: ALL-MON-2175
Keywords: Montelukast Acid Racemate, 1-[[[(1RS)-1-...
Inventory Status:In Stock-942-103
Montelukast Amide
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: 866923-63-9
Molecular Formula: C35H37ClN2O2S
Molecular Weight: 585.2
CAT No: ALL-MON-2177
Keywords: Montelukast Amide, 1-[[[(1R)-1-[3-[(1E)-...
Inventory Status:In Stock-943-103
Montelukast Dicarboxylic Acid Disodium Salt / Montelukast Dicarboxylic Acid (Mixture of Diastereomers)
Chemical Name: 2-[(3R)-3-[[[1-(Carboxymethyl)cyclopropy...
CAS No: 213380-27-9 (Diacid)
Molecular Formula: C35H32ClNNa2O5S
Molecular Weight: 660.13
CAT No: ALL-MON-2178
Keywords: Montelukast Dicarboxylic Acid Disodium S...
Inventory Status:In Stock-944-103
Montelukast Dihydro Acid / Dihydro Montelukast (Acid)
Chemical Name: 1-[[[(1R)-1-[3-[2-(7-Chloro-2-quinolinyl...
CAS No: 142147-98-6 (sodium salt)
Molecular Formula: C35H38ClNO3S
Molecular Weight: 588.2
CAT No: ALL-MON-2180
Keywords: Montelukast Dihydro Acid / Dihydro Monte...
Inventory Status:In Stock-946-103
Montelukast EP Impurity A | Montelukast S-Isomer
Chemical Name: 1-[[[(1S)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: 190078-45-6 (Na salt)/ 220927-27-5 (Acid)
Molecular Formula: C35H35ClNNaO3S (Na salt) | C35H36ClNO3S (Free Base)
Molecular Weight: 608.17 (Na Salt) | 586.18 (Free Base)
CAT No: ALL-MON-A2
Keywords: Montelukast EP Impurity A
Inventory Status:In Stock-949-103
Montelukast EP Impurity B | Montelukast USP Related Compound F
Chemical Name: [1-[[[(1R)-1-[3-[(E)-2-(7-Chloroquinolin...
CAS No: 918972-54-0
Molecular Formula: C35H34ClNO2S
Molecular Weight: 568.17
CAT No: ALL-M03689
Keywords: Montelukast EP Impurity B / Montelukast ...
Inventory Status:In Stock-950-103
Montelukast EP Impurity C | Montelukast USP Related Compound A
Chemical Name: [1-[[[1-[3-[(E)-2-(7-chloroquinolin-2-yl...
CAS No: 909849-96-3
Molecular Formula: C35H36ClNO4S
Molecular Weight: 602.18
CAT No: ALL-M03690
Keywords: Montelukast EP Impurity C / Montelukast ...
Inventory Status:In Stock-951-103
Montelukast EP Impurity D | Montelukast USP Related Compound C
Chemical Name: 1-[[[(1R)-1-[3-[(1R)-1-[[[1-(Carboxymeth...
CAS No: 1187586-61-3
Molecular Formula: C41H46ClNO5S2
Molecular Weight: 732.39
CAT No: ALL-MON-D
Keywords: Montelukast EP Impurity D / Montelukast ...
Inventory Status:In Stock-952-103
Montelukast EP Impurity E / Montelukast USP Related Compound D / Michael Adduct (R,S)-Isomer
Chemical Name: 1-[[[(1R)-1-[3-[(1S)-1-[[[1-(Carboxymeth...
CAS No: 1187586-58-8
Molecular Formula: C41H46ClNO5S2
Molecular Weight: 732.39
CAT No: ALL-MON-E
Keywords: Montelukast EP Impurity E / Montelukast ...
Inventory Status:In Stock-953-103
Montelukast EP Impurity F | Montelukast USP Related Compound E
Chemical Name: [1-[[[(1R)-3-(2-acetylphenyl)-1-[3-[(E)-...
CAS No: 937275-23-5
Molecular Formula: C34H32ClNO3S
Molecular Weight: 570.14
CAT No: ALL-MON-F
Keywords: Montelukast EP Impurity F / Montelukast ...
Inventory Status:In Stock-954-103
Montelukast EP Impurity G | Montelukast USP Related Compound B
Chemical Name: [1-[[[(1R)-1-[3-[(Z)-2-(7-Chloroquinolin...
CAS No: 774538-96-4
Molecular Formula: C35H36ClNO3S
Molecular Weight: 586.18
CAT No: ALL-M02881
Keywords: Montelukast EP Impurity I
Inventory Status:In Stock-955-103
Montelukast EP Impurity H
Chemical Name: 2-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloroquino...
CAS No: 851755-56-1 (Base)/906107-37-7 (HCl)
Molecular Formula: C34H32ClNO4S
Molecular Weight: 586.14
CAT No: ALL-MON-2190
Keywords: Montelukast EP Impurity H / Montelukast ...
Inventory Status:In Stock-956-103
Montelukast EP Impurity I
Chemical Name: (2RS)-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-...
CAS No: NA
Molecular Formula: C35H36ClNO4S
Molecular Weight: 602.18
CAT No: ALL-MON-2191
Keywords: Montelukast EP Impurity I / Montelukast ...
Inventory Status:In Stock-957-103
Montelukast Ether Impurity
Chemical Name: 7-Chloro-2-[2-[3-(1,3,4,5-tetrahydro-1,1...
CAS No: 168214-67-3
Molecular Formula: C29H26ClNO
Molecular Weight: 439.98
CAT No: ALL-MON-2192
Keywords: Montelukast Ether Impurity, 7-Chloro-2-[...
Inventory Status:In Stock-958-103
Montelukast Ketocarbinol Impurity | Montelukast Hydroxymethylcarbonyl Analog
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: NA
Molecular Formula: C34H32ClNO4S
Molecular Weight: 586.14
CAT No: ALL-MON-2193
Keywords: Montelukast Ketocarbinol Impurity / Mont...
Inventory Status:In Stock-959-103
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Montelukast Ketone Impurity (USP) | Montelukast 3-Oxo Propanol Impurity
Chemical Name: (E)-1-{3-[2-(7-Chloroquinolin-2-yl)vinyl...
CAS No: 1258428-71-5
Molecular Formula: C29H26ClNO2
Molecular Weight: 455.98
CAT No: ALL-MON-2194
Keywords: Montelukast Ketone Impurity (USP) / Mont...
Inventory Status:In Stock-960-103
Montelukast Lactone
Chemical Name: (3S)-3-[3-[(1E)-2-(7-Chloro-2-quinolinyl...
CAS No: 1100617-38-6
Molecular Formula: C27H20ClNO2
Molecular Weight: 425.91
CAT No: ALL-MON-2195
Keywords: Montelukast Lactone, (3S)-3-[3-[(1E)-2-(...
Inventory Status:In Stock-961-103
Montelukast Mercapto Acid Impurity / 3-(Mercaptomethyl)cyclopropane acetic acid
Chemical Name: 2-[1-(Mercaptomethyl)cyclopropyl]acetic ...
CAS No: 162515-68-6
Molecular Formula: C6H10O2S
Molecular Weight: 146.21
CAT No: ALL-MON-2196
Keywords: Montelukast Mercapto Acid Impurity / 3-(...
Inventory Status:In Stock-962-103
Montelukast Methoxymethoxy Impurity
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: 184764-27-0
Molecular Formula: C37H40ClNO5S
Molecular Weight: 646.24
CAT No: ALL-MON-2197
Keywords: Montelukast Methoxymethoxy Impurity, 1-[...
Inventory Status:In Stock-964-103
Montelukast Methyl Ether
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: 1351973-25-5
Molecular Formula: C36H38ClNO3S
Molecular Weight: 600.21
CAT No: ALL-MON-2198
Keywords: Montelukast Methyl Ether, 1-[[[(1R)-1-[3...
Inventory Status:In Stock-965-103
Montelukast Nitrile Impurity
Chemical Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quino...
CAS No: 866923-62-8
Molecular Formula: C35H35ClN2OS
Molecular Weight: 567.18
CAT No: ALL-MON-2199
Keywords: Montelukast Nitrile Impurity, 1-[[[(1R)-...
Inventory Status:In Stock-966-103
Montelukast Sodium
Chemical Name: 2-[1-[[(1R)-1-[3-[2-[(7-chloro-2-quinoly...
CAS No: 151767-02-1
Molecular Formula: C35H35ClNNaO3S
Molecular Weight: 608.17
CAT No: ALL-MON-2200
Keywords: Montelukast Sodium, 2-[1-[[(1R)-1-[3-[2-...
Inventory Status:In Stock-967-103
Montelukast Sulfone
Chemical Name: 1-[[[1-[3-[2-(7-Chloro-2-quinolinyl)ethe...
CAS No: 1266620-74-9
Molecular Formula: C35H36ClNO5S
Molecular Weight: 618.18
CAT No: ALL-MON-2201
Keywords: Montelukast Sulfone, 1-[[[1-[3-[2-(7-Chl...
Inventory Status:In Stock-968-103
Montelukast (3RS)-Hydroxy Propanol
Chemical Name: 2-[(3RS)-(2-(7-Chloro-2-quinolinyl)- eth...
CAS No: NA
Molecular Formula: C29H28ClNO2
Molecular Weight: 457.99
CAT No: ALL-MON-2162
Keywords: Montelukast (3RS)-Hydroxy Propanol, 2-[(...
Inventory Status:In Stock-928-103
-Hydroxy Methoxymethoxy Impurity.png)
Montelukast (3S)-Hydroxy Methoxymethoxy Impurity
Chemical Name: 2-[3-(S)-[3-(2-(7-Chloro-2-quinolinyl)et...
CAS No: 184764-20-3
Molecular Formula: C31H32ClNO4
Molecular Weight: 518.04
CAT No: ALL-MON-2165
Keywords: Montelukast (3S)-Hydroxy Methoxymethoxy ...
Inventory Status:In Stock-931-103
Montelukast 1,2-Diol / Montelukast 1,2-Diol (Mixture of Diastereomers)
Chemical Name: 2-Hydroxy Montelukast ;1-[1-[[[(1R)-1-[3...
CAS No: 186352-97-6
Molecular Formula: C35H36ClNO4S
Molecular Weight: 602.18
CAT No: ALL-MON-2170
Keywords: Montelukast 1,2-Diol / Montelukast 1,2-D...
Inventory Status:In Stock-936-103
Montelukast Dicyclohexylamine / Montelukast DCHA
Chemical Name: 1-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-qu...
CAS No: 577953-88-9
Molecular Formula: C47H59ClN2O3S
Molecular Weight: 767.5
CAT No: ALL-MON-2179
Keywords: Montelukast Dicyclohexylamine / Monteluk...
Inventory Status:In Stock-945-103
Montelukast Disulfide Diacid Impurity / Montelukast Disulfide Impurity
Chemical Name: 2-(1-((2-((1-Carboxymethylcyclopropyl)me...
CAS No: 162515-67-5
Molecular Formula: C12H18O4S2
Molecular Weight: 290.4
CAT No: ALL-MON-2181
Keywords: Montelukast Disulfide Diacid Impurity / ...
Inventory Status:In Stock-947-103
Montelukast Disulfide Dimethyl Ester
Chemical Name: Methyl 2-(1-((2-((1-methoxycarbonylmethy...
CAS No: 1446481-28-2
Molecular Formula: C14H22O4S2
Molecular Weight: 318.45
CAT No: ALL-MON-2182
Keywords: Montelukast Disulfide Dimethyl Ester, Me...
Inventory Status:In Stock-948-103