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Ethyl 4-bromobutyrate

CAS No.
2969-81-5
Chemical Name:
Ethyl 4-bromobutyrate
Synonyms
Ethyl 4-bromobutanoate;4-BROMOBUTYRIC ACID ETHYL ESTER;4- broMobutanoate;4-Bromobutanoic acid, ethyl ester;4- broMo ethyl;4-bromohexanoate;4-Bromobutylester;Ethyl 4-broMobutyr;BrCH2CH2CH2C(O)OC2H5;Ethl 4-broMobutyrate
CBNumber:
CB5216846
Molecular Formula:
C6H11BrO2
Molecular Weight:
195.05
MDL Number:
MFCD00000259
MOL File:
2969-81-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 01:58:12

Ethyl 4-bromobutyrate Properties

Melting point 98-100 °C
Boiling point 80-82 °C/10 mmHg (lit.)
Density 1.363 g/mL at 25 °C (lit.)
refractive index n20/D 1.456(lit.)
Flash point 195 °F
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility Chloroform (Sparingly), Ethyl Acetate (Slightly), Methanol (Sparingly)
form Liquid
Specific Gravity 1.363
color Clear colorless to yellow
Water Solubility immiscible
BRN 1749700
InChI 1S/C6H11BrO2/c1-2-9-6(8)4-3-5-7/h2-5H2,1H3
InChIKey XBPOBCXHALHJFP-UHFFFAOYSA-N
SMILES CCOC(=O)CCCBr
CAS DataBase Reference 2969-81-5(CAS DataBase Reference)
FDA UNII EZ8TY5JSD5
NIST Chemistry Reference Ethyl 4-bromobutyrate(2969-81-5)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  36/37/38-22
Safety Statements  26-36-37/39
WGK Germany  3
HS Code  2915900090
Storage Class 10 - Combustible liquids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
REACH Registrations Active
NFPA 704
2
2 0

Ethyl 4-bromobutyrate price More Price(64)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 167118 Ethyl 4-bromobutyrate 95% 2969-81-5 50g $64.8 2026-04-30 Buy
Sigma-Aldrich 167118 Ethyl 4-bromobutyrate 95% 2969-81-5 250g $284 2026-04-30 Buy
TCI Chemical B0999 Ethyl 4-Bromobutyrate >97.0%(GC) 2969-81-5 25g $24 2026-04-30 Buy
TCI Chemical B0999 Ethyl 4-Bromobutyrate >97.0%(GC) 2969-81-5 100g $63 2026-04-30 Buy
TRC TRC-E900290-50G Ethyl 4-Bromobutanoate 2969-81-5 50g $70 2026-06-03 Buy
Product number Packaging Price Buy
167118 50g $64.8 Buy
167118 250g $284 Buy
B0999 25g $24 Buy
B0999 100g $63 Buy
TRC-E900290-50G 50g $70 Buy

Ethyl 4-bromobutyrate Chemical Properties, Uses, Production

Description

Ethyl 4-bromobutyrate is a colourless volatile liquid organic or biological reagent. It is used in organic synthesis to prepare 4-bromobutyl ester, 4-bromobutyl amide and 4-bromobutyl ether. It is also used in the synthesis of poly(2,6-dimethyl-1,4-epoxyphenyl ether) and isotopic thieno[2,3-b]azepin-4-one thieno[2,3-b]-azepin-4-one with antitumour activity. In the biological field, it has been used in enzyme-linked immunosorbent assays for zilpaterol.

Chemical Properties

clear colorless to yellow liquid

Uses

A versatile building block and synthesis reagent

Uses

Ethyl 4-bromobutyrate is used as a building block for the preparation of firefly luciferase inhibitor-conjucated peptide derivatives. It finds application in the synthesis of poly(2,6,-dimethyl-1,4-phehylene oxide) and thieno(2,3-b)-azepin-4-ones.

Synthesis Reference(s)

The Journal of Organic Chemistry, 56, p. 2264, 1991 DOI: 10.1021/jo00006a061

Hazard

Strongly irritating to skin and eyes

Synthesis

4-Bromobutyric acid

2623-87-2

Ethyl 4-bromobutyrate

2969-81-5

Part A: Synthesis of ethyl 4-bromobutyrate To a solution of 4-bromobutyric acid (3 g, 18 mmol) in ethanol (30 mL) was added 5 mL of a dioxane solution of 4N HCl. The reaction mixture was stirred at room temperature for 16 hours. Upon completion of the reaction, the volatile components were removed under vacuum. The concentrated residue was dissolved in 150 mL of dichloromethane. The organic phase was washed sequentially with saturated aqueous NaHCO3 (1 x 150 mL) and brine (1 x 150 mL), dried over anhydrous MgSO4, filtered, and the filtrate was concentrated under reduced pressure. The concentrated residue was dried under vacuum to give 3 g (85.5% yield) of ethyl 4-bromobutyrate as a yellow oil.1H NMR (300 MHz, CDCl3): δ1.22 (t, 3H, J = 7.15 Hz), 2.13 (m, 2H, J = 6.80 Hz), 2.45 (t, 2H, J = 7.15 Hz), 3.43 (t , 2H, J = 6.44Hz), 4.10 (q, 2H, J = 7.25Hz).

References

[1] Patent: US5753660, 1998, A

96-48-0
64-17-5
2969-81-5
Synthesis of Ethyl 4-bromobutyrate from Gamma Butyrolactone and Ethanol
Global Suppliers ( 565)
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	Ethyl 4-bromobutyrate pictures 2026-09-02 Ethyl 4-bromobutyrate
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$5.00-8.00 1KG 99% Henan Fengda Chemical Co., Ltd
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1KG 99.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
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BrCH2CH2CH2C(O)OC2H5 Butanoic acid, 4-bromo-, ethyl ester Ethyl gamma-bromobutyrate ETHYL 4-BROMO-N-BUTYRATE ETHYL 4-BROMOBUTYRATE ETHYL GAMMA-BROMO-N-BUTYRATE ETHYL G-BROMOBUTYRATE GAMMA-BROMOBUTYRIC ACID ETHYL ESTER Ethyl 4-bromibutyrate Ethyl 4-bromobutanoic acid 4-BROMO-N-BUTYRIC ACID ETHYL ESTER 1-Bromo-3-(carboethoxy)propane 3-(Ethoxycarbonyl)propyl bromide Butyric acid, 4-bromo-, ethyl ester 4-Bromobutanoic acid ethyl 4-Bromobutyric acid ethyl Ethyl 4-bromobutyrate ,98% 4-broMo ethyl butyrate Ethl 4-broMobutyrate Ethyl 4-broMobutyrate, 95% 100ML Ethyl 4-bromobutyrate,95% Ethyl 4-broMobutyr 4- broMo ethyl Ethyl 4-broMobutyrate 95% 4- broMobutanoate 4 - broMine ethyl butyrate Ethyl 4-bromobutanoate 98% 4-bromohexanoate Ethyl 4-bromobutyrate, 98%, for synthesis Ethyl 4-Bromobutyrate > Ethyl 4-Bromobutyrate, ≥ 97.0% 4-Bromobutylester 4-Bromobutanoic acid, ethyl ester 4-Bromobutyrate ethyl 4-BROMOBUTYRIC ACID ETHYL ESTER Ethyl 4-bromobutanoate 2969-81-5 BrCH23COOC2H5 BrCH23CO2CH2CH3 HALOGEN Carbonyl Compounds C6 to C7 Building Blocks Esters Organic Building Blocks Pyridines Acids & Esters Bromine Compounds C6 to C7 Carbonyl Compounds Esters bc0001