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
| Melting point | 98-100 °C |
|---|---|
| Boiling point | 80-82 °C/10 mmHg (lit.) |
| Density | 1.363 g/mL at 25 °C (lit.) |
| refractive index |
n |
| 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) | ![]() 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 |
|
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 |
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
2623-87-2
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
Ethyl 4-bromobutyrate Preparation Products And Raw materials
Raw materials
Preparation Products
1of4
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Nanjing Hike Biological Technology.,ltd | 025-52110956 17372769668 | sophia@njhkchem.com | China | 35 | 58 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Henan Zhonghui Electronic New Material Co. LTD | 18039397225 | 448035455@qq.com | China | 15 | 58 |
| Wuhan Jieyou Shun Chemical Technology Co., Ltd. | 18062118104; 18062118104 | 3932636749@qq.com | China | 294 | 58 |
| ZOUPING MINGYUAN IMP.&EXP. TRADE CO.,LTD. | 18364991597 | fox793@163.com | China | 21 | 58 |
| Jingjiang Connect Chemical Manufacture Co., Ltd | 0523-84506864 13625187466 | sales@lvyuchem.com | China | 130 | 62 |
| Creasyn Finechem(Tianjin) Co., Ltd. | 022-83946278 13820372920 | sales@creasyn.com | China | 968 | 68 |
| Shanghai Boyle Chemical Co., Ltd. | 021-50182298 021-50180596 | sales@boylechem.com | China | 2202 | 55 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
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View Latest Price from Ethyl 4-bromobutyrate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-02 | Ethyl 4-bromobutyrate
2969-81-5
|
$5.00-8.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
![]() |
2026-06-30 | Ethyl 4-bromobutyrate
2969-81-5
|
1KG | 99.0% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
![]() |
2026-06-08 | Ethyl 4-bromobutyrate
2969-81-5
|
1kg | 99% | 1 | Jinan Ruitong Biotech Co., Ltd. |
-

- Ethyl 4-bromobutyrate
2969-81-5
- $5.00-8.00
- 99%
- Henan Fengda Chemical Co., Ltd
-

- Ethyl 4-bromobutyrate
2969-81-5
- 99.0%
- Shaanxi Dideu New Materials Co. Ltd
-

- Ethyl 4-bromobutyrate
2969-81-5
- 99%
- Jinan Ruitong Biotech Co., Ltd.







