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inquiryUnique advantages for Chlorpheniramine maleate Cas 113-92-8 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White or almost white crystalline powder Storage:-20°C Freezer Pac
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Name:Chlorpheniramine maleate The alias:1-(p-Chlorophenyl)-1-(2-pyridyl)-3-dimethy-laminopropanebimaleate CAS NO:113-92-8 EINECS NO:204-037-5 Molecular formula:C20H23ClN2O4 Molecular weight:390.87 Product Quality 12 years of chemical r
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inquiryAppearance:White to Almost white powder Storage:R T Package:25kg/Barrel Application:Antihistamine. Similar to clodromiton, bromophenopyramide is also an antihistamine. The production method of bromobenzopyramine is also similar to clodromiton, excep
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inquiryProduct Name: Chlorpheniramine maleate CAS: 113-92-8 MF: C20H23ClN2O4 MW: 390.86 EINECS: 204-037-5 Mol File: 113-92-8.mol Chlorpheniramine maleate Structure Chlorpheniramine maleate Chemical Properties Melting point 130-135 &d
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inquiryChlorpheniramine maleate CAS: 113-92-8 Specification Name Chlorpheniramine maleate EINECS 204-037-5 CAS No. 113-92-8 Density 1.107 g/cm3 PSA 90.73000 LogP 3.53040 Solubility
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inquiryformic acid
Didesmethylchlorpheniramine
maleic acid
chlorphenamine maleate
Conditions | Yield |
---|---|
Stage #1: formic acid; Didesmethylchlorpheniramine In water; N,N-dimethyl-formamide at 100℃; for 24h; Stage #2: maleic acid In isopropyl alcohol at 80℃; for 2h; | 88.8% |
2-(4-chlorobenzyl)pyridine
2-(dimethylamino)ethyl chloride
maleic acid
chlorphenamine maleate
Conditions | Yield |
---|---|
Stage #1: 2-(4-chlorobenzyl)pyridine With sodium amide In toluene Reflux; Stage #2: 2-(dimethylamino)ethyl chloride In toluene for 6h; Reflux; Stage #3: maleic acid In water | 54.4% |
Stage #1: 2-(4-chlorobenzyl)pyridine With sodium amide In toluene Reflux; Stage #2: 2-(dimethylamino)ethyl chloride In toluene for 6h; Reflux; Stage #3: maleic acid In toluene | 22.4 g |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: cobaltocene / 4 h / 150 - 170 °C / Autoclave 2.1: sodium amide / tetrahydrofuran / 1 h / 20 - 25 °C 2.2: 2 h / 30 - 45 °C 3.1: ethanol / 2.5 h / -2 - 0 °C View Scheme |
Conditions | Yield |
---|---|
In ethanol at -2 - 0℃; for 2.5h; | 350 g |
With pyrographite In ethanol at 80℃; for 1.5h; Temperature; Large scale; | |
With pyrographite In ethanol at 80℃; for 2h; Temperature; |
maleic acid
Conditions | Yield |
---|---|
Stage #1: 2-(4-chlorobenzyl)pyridine With sodium amide In toluene Reflux; Stage #2: 2-(N,N-dimethylamino)ethyl bromide In toluene for 6h; Reflux; Stage #3: maleic acid In toluene | 24.1 g |
chlorphenamine maleate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: manganese; trifluoroacetic acid / acetonitrile / 0.17 h 1.2: 12 h / 30 - 40 °C 2.1: sodium amide / toluene / Reflux 2.2: 6 h / Reflux View Scheme | |
Multi-step reaction with 2 steps 1.1: manganese; trifluoroacetic acid / acetonitrile / 0.17 h 1.2: 12 h / 30 - 40 °C 2.1: sodium amide / toluene / Reflux 2.2: 6 h / Reflux View Scheme | |
Multi-step reaction with 2 steps 1.1: manganese; trifluoroacetic acid / acetonitrile / 0.17 h 1.2: 12 h / 30 - 40 °C 2.1: sodium amide / toluene / Reflux 2.2: 6 h / Reflux View Scheme | |
Multi-step reaction with 3 steps 1.1: manganese; trifluoroacetic acid / acetonitrile / 0.17 h 1.2: 12 h / 30 - 40 °C 2.1: sodium amide / toluene / 0.33 h / 20 °C 2.2: 8 h / Reflux 3.1: water; N,N-dimethyl-formamide / 24 h / 100 °C 3.2: 2 h / 80 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: manganese; trifluoroacetic acid / acetonitrile / 0.17 h 1.2: 12 h / 30 - 40 °C 2.1: sodium amide / toluene / Reflux 2.2: 6 h / Reflux View Scheme | |
Multi-step reaction with 3 steps 1.1: manganese; trifluoroacetic acid / acetonitrile / 0.17 h 1.2: 12 h / 30 - 40 °C 2.1: sodium amide / toluene / 0.33 h / 20 °C 2.2: 8 h / Reflux 3.1: water; N,N-dimethyl-formamide / 24 h / 100 °C 3.2: 2 h / 80 °C View Scheme |
4-(2-Pyridinylmethyl)phenylamine
chlorphenamine maleate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: sodium nitrite; hydrogenchloride / water / 0.33 h / 0 - 5 °C 1.2: 4 h / 20 °C 2.1: sodium amide / toluene / Reflux 2.2: 6 h / Reflux View Scheme | |
Multi-step reaction with 3 steps 1.1: sodium nitrite; hydrogenchloride / water / 0.33 h / 0 - 5 °C 1.2: 4 h / 20 °C 2.1: sodium amide / toluene / 0.33 h / 20 °C 2.2: 8 h / Reflux 3.1: water; N,N-dimethyl-formamide / 24 h / 100 °C 3.2: 2 h / 80 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: sodium amide / toluene / 0.33 h / 20 °C 1.2: 8 h / Reflux 2.1: water; N,N-dimethyl-formamide / 24 h / 100 °C 2.2: 2 h / 80 °C View Scheme |
chlorphenamine maleate
Conditions | Yield |
---|---|
With CH3COOH In acetic acid byproducts: CH3COOK, H2O, HCN; aq. acetic acid; 20-30 min, 80°C; CO2 bubbled (few h) to remove HCN; ppt. filtered, washed (H2O repeatedly; ethanol); dried (vac., over silica gel, room temp., to const. wt.); elem.anal.; | 55% |
salicylaldehyde anthranilic acid
chlorphenamine maleate
Co(OC6H4CHNC6H4COO)(C5H4NCH(CH2CH2N(CH3)2)C6H4Cl)(H2O)*(HCCOOH)2
Conditions | Yield |
---|---|
In ethanol byproducts: HNO3; refluxing ethanolic solns. of metal salt, schiff base and heterocyclic base in 1:1:1 molar ratio for 2-5 h, pptn.; filtn., washing with ethanol, drying in vacuo, elem. anal.; | 53% |
chlorphenamine maleate
Conditions | Yield |
---|---|
In water; acetic acid addn. of ligand in a mixt. of water/acetic acid to a filtered aq. soln. of molybdate with shaking, refluxing for 4-5 h over a hot plate at 80°C; filtn. by suction, washing several times with dilute acetic acid, finally with water, drying in vacuo at room temp. to a constant weight, elem. anal.; | 52% |
chlorphenamine maleate
2-(salicylideneamino)thiophenol
Co(OC6H4CHNC6H4S)(C5H4NCH(CH2CH2N(CH3)2)C6H4Cl)(H2O)*(HCCOOH)2
Conditions | Yield |
---|---|
In ethanol byproducts: HNO3; refluxing ethanolic solns. of metal salt, schiff base and heterocyclic base in 1:1:1 molar ratio for 2-5 h, pptn.; filtn., washing with ethanol, drying in vacuo, elem. anal.; | 50% |
chlorphenamine maleate
A
dextrochlorpheniramine maleate
B
(-)-Chlorpheniramine maleate
Conditions | Yield |
---|---|
With sodium dihydrogenphosphate; phosphoric acid In methanol; water pH=2.75; Reagent/catalyst; Ionic liquid; Resolution of racemate; | |
With maleic anhydride-β-cyclodextrin modified Fe3O4 Resolution of racemate; Optical yield = 13.7 %ee; | |
With tetramethylammonium hydroxyproline; clindamycin phosphate In methanol; water at 20℃; pH=7.6; pH-value; Solvent; Temperature; Resolution of racemate; enantioselective reaction; | |
With β‐cyclodextrin In aq. phosphate buffer pH=2.5; Resolution of racemate; |
Eosin Y
chlorphenamine maleate
Conditions | Yield |
---|---|
In water at 23℃; for 0.166667h; pH=3.72; Solvent; pH-value; Temperature; |
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