1-Bromo-2-ethylbutane
1-Bromo-2-ethylbutane (CAS: 3814-34-4) is a halogenated hydrocarbon with a molecular weight of 165.07 g/mol. This organic building block is primarily used in chemical synthesis and as a reagent in laboratory research. Its utility extends to applications such as the preparation of specific amine compounds and as a cysteine-modifying agent, making it a valuable intermediate for fine chemical and pharmaceutical development.
- IUPAC
- 3-(Bromomethyl)pentane

Preparation of Dialkoxytriarylamines
1-Bromo-2-ethylbutane serves as a key intermediate in the synthesis of dialkoxytriarylamines. This application is crucial in developing novel organic compounds with potential electronic or optical properties.
Cysteine-Modifying Reagent
This bromoalkane functions as a cysteine-modifying reagent in biochemical research. It allows for selective functionalization of cysteine residues in peptides and proteins, aiding in structural and functional studies.
Organic Synthesis Building Block
As an alkyl halide, 1-Bromo-2-ethylbutane is a versatile building block in organic synthesis. It can participate in various reactions, including nucleophilic substitutions, to introduce the 2-ethylbutyl group into target molecules.
| Molecular weight | 165.07 |
|---|---|
| Linear formula | (C2H5)2CHCH2Br |
| Assay | 97% |
| Boiling point | 143-144 °C(lit.) |
| Density | 1.179 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4498(lit.) |
| Application | 1-Bromo-2-ethylbutane was used in the preparation of dialkoxytriarylamine1. It was also used as cysteine-modifying reagent2. |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 36 °C / 96.8 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 16-29-33 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1-Bromo-2-ethylbutane used for?
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1-Bromo-2-ethylbutane is used in the preparation of dialkoxytriarylamines and as a cysteine-modifying reagent in chemical synthesis and laboratory research.
What is the CAS number and formula for 1-Bromo-2-ethylbutane?
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The CAS number for 1-Bromo-2-ethylbutane is 3814-34-4. Its linear formula is (C2H5)2CHCH2Br.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Bromo-2-ethylbutane with a purity of 97%.
How should 1-Bromo-2-ethylbutane be handled?
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1-Bromo-2-ethylbutane is a flammable liquid (H226) and requires careful handling. It should be stored away from ignition sources. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, should be used. Consult the Safety Data Sheet for detailed information.
How is 1-Bromo-2-ethylbutane shipped and exported?
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1-Bromo-2-ethylbutane is shipped according to UN 1993 C3/PGIII regulations. Tech Serve Solutions exports fine chemicals globally, adhering to all relevant international shipping standards.
How can I request a quote or sample of 1-Bromo-2-ethylbutane?
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To request a quote or sample of 1-Bromo-2-ethylbutane, please contact our sales department through the website or by phone.
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