ChemicalBook > CAS DataBase List > Benzonatate

Benzonatate

Benzonatate Structure
Benzonatate
  • CAS No.104-31-4
  • Chemical Name:Benzonatate
  • CBNumber:CB0141109
  • Molecular Formula:C30H53NO11
  • Formula Weight:603.74
  • MOL File:104-31-4.mol
Benzonatate Property
  • Boiling point 649.0±55.0 °C(Predicted)
  • Density 1.096±0.06 g/cm3(Predicted)
  • storage temp. Refrigerator, under inert atmosphere
  • solubility Chloroform (Slightly), Methanol (Slightly)
  • pka 2.20±0.39(Predicted)
  • form Oil
  • color Light Yellow to Light Brown
  • BCS Class 3?
  • CAS DataBase Reference 104-31-4(CAS DataBase Reference)
  • FDA UNII 5P4DHS6ENR
  • ATC code R05DB01
  • UNSPSC Code 41116107
  • NACRES NA.25
Safety
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H302-H319-H335-H315
  • Precautionary statements P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501-P264-P280-P302+P352-P321-P332+P313-P362

Benzonatate Chemical Properties,Usage,Production

  • Description Benzonatate is a reversible voltage-gated sodium channel blocker. It blocks Nav1.7 currents in a concentration- and voltage-dependent manner (IC50s = 5.9 and 1.4 μM at holding potentials of -100 and -70 mV, respectively) and inhibits action potential firing in catecholamine A differentiated (CAD) cells. Benzonatate also blocks 80% of Nav1.3 currents in N1E-115 cells when used at a concentration of 100 μM. In vivo, benzonatate (0.85 mg/min) reduces the frequency, but has no effect on the amplitude, of the cough reflex in anesthetized dogs. Formulations containing benzonatate have been used as antitussive agents for the treatment of coughs.
  • Originator Tessalon,Endo (Du Pont),US,1958
  • Uses Antitussive
  • Definition ChEBI: The ester obtained by formal condensation of 4-butylaminobenzoic acid with nonaethylene glycol monomethyl ether. Structurally related to procaine and benzocaine, it has an anaesthetic effect on the stretch sensors in the lungs, and is used as a non-narcoti cough suppressant.
  • Manufacturing Process 4.42 parts of para-butylamino-benzoic acid ethyl ester are put with 16.0 parts of a mixture of polyethylene glycol monomethyl ethers, boiling at 180°-220°C at a pressure of 0.01 mm of mercury, in a closed reaction vessel which is fitted with an adjustable inlet tube for solvents and a connection for distilling off in vacuo. In order to dry the mixture completely, it is heated for an hour at 100°-105°C and absolute xylene is introduced under the surface of the mixture in vacuo at a pressure of 12 mm of mercury. There is thus a constant stream of xylene steam passing through the whole apparatus, which removes the last traces of moisture and any other volatile impurities. The xylene is condensed in a cooler. The whole is cooled to 20°-30°C and 0.06 part of sodium methylate dissolved in 0.6 part of methanol is added.
    Thereupon xylene is introduced again in vacuo at a temperature of 100°- 105°C whereby all the methanol and the ethanol formed during reesterification evaporates. The re-esterification is continued under these conditions until a specimen of the reaction mass is clearly soluble in cold water, which occurs after about 2-3 hours. There is now obtained in almost quantitative yield the ester of the formula wherein n stands for approximately 7 to 9, which still contains an excess of polyethylene glycol monomethyl ether. The ester is purified by dissolving in benzene and being washed several times with a sodium carbonate solution of 5% strength. It is advantageous to agitate all the washing solutions with fresh benzene. In this distribution between benzene and sodium carbonate solution the new ester remains in the benzene, the excess polyethylene glycol monomethyl ether and a small amount of brown impurities are taken up by the dilute soda solution. By evaporating the dried and filtered benzene solution there is obtained the new ester in the form of a colorless to very faintly yellow oil which is easily soluble in most organic solvents with the exception of aliphatic hydrocarbons. The new ester is precipitated from aqueous solutions when heated to about 42°C. but it dissolves again readily on cooling.
  • brand name Tessalon (Forest).
  • Therapeutic Function Antitussive
  • Biological Functions Benzonatate (TessaIon) is related to the local anesthetic tetracaine. It anesthetizes the stretch receptors in the lungs, thereby reducing coughing.Adverse reactions include hypersensitivity, sedation, dizziness, and nausea.
  • Mechanism of action It is believed that it acts by two mechanisms: selective anesthesia of irritated receptors in the lungs and simultaneous suppression of the cough center.
  • Synthesis Benzonatate, p-butylaminobenzoate 2,5,8,11,14,17,20,23,26-nonaoctacozan- 28-ol (23.2.2), is synthesized by reesterifying the ethyl ester of 4-butylaminobenzoic acid with the monomethyl ether nonaethylenglycol. It is a structural analog of the local anesthetic tetracaine.

    Synthesis_104-31-4

Benzonatate Preparation Products And Raw materials
Raw materials
Preparation Products
Benzonatate Suppliers
Global(107)Suppliers
  • Supplier：
    Henan Tianfu Chemical Co.,Ltd.
  • Tel：+86-0371-55170693<br/>+86-19937530512
  • Email：info@tianfuchem.com
  • Country：China
  • ProdList：21628
  • Advantage：55
  • Supplier：
    TargetMol Chemicals Inc.
  • Tel：+1-781-999-5354<br/>+1-00000000000
  • Email：marketing@targetmol.com
  • Country：United States
  • ProdList：32159
  • Advantage：58
  • Supplier：
    Career Henan Chemica Co
  • Tel：+86-0371-86658258<br/>+8613203830695
  • Email：laboratory@coreychem.com
  • Country：China
  • ProdList：30231
  • Advantage：58
  • Supplier：
    Xi'an MC Biotech, Co., Ltd.
  • Tel：029-89275612<br/>+8618991951683
  • Email：mcbio_sales@163.com
  • Country：China
  • ProdList：2251
  • Advantage：58
  • Supplier：
    AFINE CHEMICALS LIMITED
  • Tel：+86-0571-85134551
  • Email：sales@afinechem.com
  • Country：China
  • ProdList：15395
  • Advantage：58
  • Supplier：
    Finetech Industry Limited
  • Tel：+86-27-8746-5837<br/>+8619945049750
  • Email：info@finetechnology-ind.com
  • Country：China
  • ProdList：9642
  • Advantage：58
Benzonatate Spectrum
104-31-4, BenzonatateRelated Search:
  • Pharmaceuticals
  • Intermediates & Fine Chemicals
  • Amines
  • Chemical Amines
  • 抑制剂
  • 标准品
  • 原料药
  • 镇咳药物
  • 医药原料
  • 其他化学试剂
  • C30H53NO11
  • 苯佐那酯,10 MM DMSO 溶液
  • 苯佐那酯 USP标准品
  • 苯佐那酯
  • 本佐那酯
  • 4-丁氨基苯甲酸九聚乙二醇单甲醚酯
  • 退嗽
  • 对正丁氨基苯甲酸-2-(ω)-甲氧工-八乙氧基-乙酯
  • 对丁氨苯甲酸甲氧聚乙烯氧基乙酯
  • 104-31-4
  • Benzonatate, 10 mM in DMSO
  • enzonatate
  • Tetracaine Impurity 28
  • Sodium Channel,inhibit,tetracaine-like metabolite,respiratory stretch receptors,Benzononatine,Benzonatate,antitussive,local anesthetic,Na channels,Inhibitor,Na+ channels
  • Benzonatate Labeled d9
  • Benzoic acid, 4-(butylamino)-, 3,6,9,12,15,18,21,24,27-nonaoxaoctacos-1-yl ester
  • Benzonatate USP/EP/BP
  • TIANFU-CHEM Benzonatate
  • BENZONATATE
  • BENZOIC ACID,4-(BUTYLAMINO)-,2,5,8,11,14,17,20,23,26-NONAOXAOCTACOS-28-YL ESTER
  • Benzonatate (1 g)
  • 4-(butylamino)benzoic acid 2-[2-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl ester
  • p-(Butylamino)benzoic acid 2,5,8,11,14,17,20,23,26-nonaoxaoctacos-28-yl
  • 2,5,8,11,14,17,20,23,26-nonaoxaoctacosan-28-yl 4-(butylaMino)benzoate
  • BENZOATE BENZONATATO
  • 2,5,8,11,14,17,20,23,26-NONAOXAOCTACOSAN-28-YL P-(BUTYLAMINO)-BENZOATE
  • 2-[2-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl-4-butylaminobenzoate
  • tessalin
  • tesalon
  • polyethyleneglycol-p-n-butylaminobenzoatemethylester
  • p-(n)-butylaminobenzoesaeure-(nonaaethylenglykol-monomethylaether)-ester
  • p-(butylamino)-benzoicaci2-(2-(2-(2-(2-(2-(2-(2-(2-methoxyethoxy)ethoxy)e
  • km65
  • exangit
  • ventussin-loz
  • ventussin
  • thoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethylester
  • tessalon-ciba
  • tessalon
  • benzononatine
  • benzononantin
  • benzoicacid,4-(butylamino)-,3,6,9,12,15,18,21,24,27-nonaoxaoctacos-1-yles
  • 4-(Butylamino)benzoicacid3,6,9,12,15,18,21,24,27-nonaoxao-ctacos-1-ylester

Home

My