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Esmolol

CAS No.
81147-92-4
Chemical Name:
Esmolol
Synonyms
ESMOLOL;asl8052-001;(+-)-Esmolol;Esmolol, beta1 receptor antagonist;Methyl 3-[4-(2-hydroxy-3-propan-2-ylamino-propoxy)phenyl]propanoate;methyl4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)benzenepropanoate;Methyl 4-[2-hydoxy-3[(1-methylethyl)amino]-propoxy]benzenepropanoate;4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)-benzenepropanoicacimethyle;Methyl 3-[4-({2-hydroxy-3-[(1-methylethyl)amino]propyl}oxy)phenyl]propanoate;3-[4-[2-Hydroxy-3-(isopropylamino)propoxy]phenyl]propanoic acid methyl ester
CBNumber:
CB6454935
Molecular Formula:
C16H25NO4
Molecular Weight:
295.37
MDL Number:
MFCD00864566
MOL File:
81147-92-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-20 15:45:17

Esmolol Properties

Melting point 48-50 °C
Boiling point 430.2±40.0 °C(Predicted)
Density 1.026
storage temp. Store at -20°C
solubility DMSO: 59 mg/mL (199.75 mM);Ethanol: 59 mg/mL (199.75 mM)
pka 13.88±0.20(Predicted)
Water Solubility Slightly soluble
Merck 14,3700
InChI InChI=1S/C16H25NO4/c1-12(2)17-10-14(18)11-21-15-7-4-13(5-8-15)6-9-16(19)20-3/h4-5,7-8,12,14,17-18H,6,9-11H2,1-3H3
InChIKey AQNDDEOPVVGCPG-UHFFFAOYSA-N
SMILES C1(CCC(OC)=O)=CC=C(OCC(O)CNC(C)C)C=C1
CAS DataBase Reference 81147-92-4(CAS DataBase Reference)
FDA UNII MDY902UXSR
NCI Drug Dictionary esmolol
ATC code C07AB09

SAFETY

Risk and Safety Statements

RTECS  DA8345500

Esmolol price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Chem-Impex 37858 Esmolol ≥98%(GC) 81147-92-4 100MG $664.19 2026-05-19 Buy
ApexBio Technology C6413 Esmolol 81147-92-4 50mg $68 2026-05-06 Buy
AHH MT-50834 Esmolol 97% 5g $620 2026-05-26 Buy
AvaChem 1690B Esmolol 81147-92-4 10mg $39 2026-05-22 Buy
AvaChem 1690B Esmolol 81147-92-4 100mg $49 2026-05-22 Buy
Product number Packaging Price Buy
37858 100MG $664.19 Buy
C6413 50mg $68 Buy
MT-50834 5g $620 Buy
1690B 10mg $39 Buy
1690B 100mg $49 Buy

Esmolol Chemical Properties,Uses,Production

Originator

Esmolol,AroKor Holdings

Uses

Esmolol is a cardioselective beta1 receptor blocking agent.

Uses

Agricultural chemical.

Definition

ChEBI: Methyl 3-{4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl}propanoate is a methyl ester that is methyl 3-(4-hydroxyphenyl)propanoate in which the hydrogen attached to the phenolic hydroxy group is substituted by a 2-hydroxy-3-(isopropylamino)propyl group. It is an aromatic ether, a member of ethanolamines, a methyl ester, a secondary alcohol and a secondary amino compound. It is functionally related to a 3-{4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl}propanoic acid.

Manufacturing Process

A solution of 17 g (0.1 mole) of 3-(4-hydroxyphenyl)propionic acid in 500 mL methanol and 2 mL concentrated sulfuric acid were placed in a Soxhlet extractor charged with 3A molecular sieves. The solution was refluxed for 72 hours and the sieve were exchanged at 24 hour intervals. The reaction medium was then evaporated to an oil which was dissolved in 100 mL toluene and extracted with 100 mL water (3 times). The toluene phase was dried over magnesium sulfate, treated with activated charcoal and evaporated to provide 15 g (80%) of a clear oil. The NMR spectrum was consistent with the methyl 3-(4-hydroxyphenyl)propionate.
The oil described above was utilized directly in the condensation reaction with the epichlorohydrin. A mixture of 0.1 mole of methyl 3-(4- hydroxyphenyl)propionate, 0.2 mole potassium carbonate and 0.4 mole epichlorohydrin in 250 mL acetone was heated to reflux for 24 hours. The reaction medium was then filtered and evaporated. The residue was taken up in 100 mL toluene and washed with 100 mL 1.0 N NaOH and 100 mL water (2 times). The toluene phase was then dried over magnesium sulfate and evaporated to provide the crude product as an oil. Purification was effected by vacuum distillation (156°C/0.4 mm) and provided methyl 3-[4-(2,3- epoxypropoxy)phenyl]propionate. The NMR and IR spectra and elemental analysis data were consistent with the assigned structure.
A mixture of 50 g (0.21 mole) of methyl 3-[4-(2,3- epoxypropoxy)phenyl]propionate and 100 mL of isopropylamine in 100 mLmethanol was heated to reflux for 4 hours. The reaction medium was then evaporated and the resulting oil taken up in methanol and treated with ethereal HCl and provided crystals which were recrystallized in similar fashion to provide 28 g (47%) of white crystals: melting point 85-86°C. The NMR and IR spectra and the elemental analysis data were consistent with the structure of methyl 4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)benzenepropanoate.
In practice it is usually used as hydrochloride.

Therapeutic Function

Beta-adrenergic blocker

Hazard

A reproductive hazard.

Clinical Use

Esmolol (Brevibloc) is a short-acting intravenously administered β1-selective adrenoceptor blocking agent. It does not possess membrane-stabilizing activity or sympathomimetic activity.
Esmolol is used in the treatment of supraventricular tachyarrhythmias for rapid control of ventricular rate and reduction of myocardial oxygen consumption. Discontinuation of administration is followed by a rapid reversal of its pharmacological effects because of esmolol’s rapid hydrolysis by plasma esterases.

Side effects

The most frequently reported adverse effects are hypotension, nausea, dizziness, headache, and dyspnea.As with many β-blocking drugs, esmolol is contraindicated in patients with overt heart failure and those in cardiogenic shock.

Metabolism

The -blocker esmolol (Brevibloc) is unusual in that it is very rapidly metabolized; its plasma half-life is only 9 minutes. It is subject to hydrolysis by cytosolic esterases in red blood cells to yield methanol and an acid metabolite, the latter having an elimination half-life of about 4 hours. Only 2% of the administered esmolol is excreted unchanged. Because of its rapid onset and short duration of action, esmolol is used by the intravenous route for the control of ventricular arrhythmias in emergencies.

106-41-2
81147-92-4
Synthesis of Esmolol from 4-Bromophenol

Esmolol Suppliers

Global( 90)Suppliers
Supplier Tel Email Country ProdList Advantage
Jiangsu Chia Tai Feng Hai Pharmaceutical Co.,Ltd 025-57033246-8069 17305112672 kiderer@163.com China 20 58
Shanghai Jiapu Biotechnology Co., Ltd 18221901645 18221901645@163.com China 68 58
LGM Pharma 1-(800)-881-8210 inquiries@lgmpharma.com United States 2110 70
Beijing HuaMeiHuLiBiological Chemical 010-56205725 waley188@sohu.com China 12323 58
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
TCI Europe 320-37350700 sales@tcieurope.eu Europe 23654 75
TCI AMERICA 800-4238616 sales@tciamerica.com Americas 23636 75
Nanjing Sunlida Biological Technology Co., Ltd. 025-57798810 18652991625 sales@sunlidabio.com China 3223 55
Shanghai Shanyuan pharmaceutical technology co., LTD 021-31761238 13167072949 3146446224@qq.com China 1419 55
Shanghai QianYan Bio-technology Co., Ltd 02781293128 orders@biochemsafebuy.com China 9904 55

View Lastest Price from Esmolol manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Esmolol pictures 2026-04-10 Esmolol
81147-92-4
$2.00-5.00 1KG 99% hplc 500TONS Wuhan JiyunZen Tech Co., Ltd.
		ethyl 5-amino-2H-1,2,4-triazole-3-carboxylate pictures 2024-10-22 ethyl 5-amino-2H-1,2,4-triazole-3-carboxylate
81147-92-4
$1.00 1g 85.0-99.8% 20ton Career Henan Chemica Co
			Esmolol pictures 2024-10-22 Esmolol
81147-92-4
$1.00 1g 85.0-99.8% 20ton Career Henan Chemica Co
  • Esmolol pictures
  • Esmolol
    81147-92-4
  • $2.00-5.00
  • 99% hplc
  • Wuhan JiyunZen Tech Co., Ltd.
  • 			Esmolol pictures
  • Esmolol
    81147-92-4
  • $1.00
  • 85.0-99.8%
  • Career Henan Chemica Co
ESMOLOL 3-[4-(2-Hydroxy-3-isopropylamino-propoxy)-phenyl]-propionic acid methyl ester 4-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]benzenepropanoic acid methyl ester 4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)-benzenepropanoicacimethyle asl8052-001 methyl4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)benzenepropanoate Methyl 3-[4-(2-hydroxy-3-propan-2-ylamino-propoxy)phenyl]propanoate Methyl 4-[2-hydoxy-3[(1-methylethyl)amino]-propoxy]benzenepropanoate 3-[4-[2-Hydroxy-3-(isopropylamino)propoxy]phenyl]propanoic acid methyl ester 4-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]benzenepropionic acid methyl ester Methyl 3-[4-({2-hydroxy-3-[(1-methylethyl)amino]propyl}oxy)phenyl]propanoate (+-)-Esmolol Esmolol, beta1 receptor antagonist 81147-92-4 81147-92-4