Bromodimethylborane
Bromodimethylborane (CAS 5158-50-9), with the linear formula (CH₃)₂BBr and a molecular weight of 120.78 g/mol, is a highly reactive organoboron compound. It serves as a valuable reagent in organic synthesis, particularly in reduction reactions and as a synthetic building block. Its volatile nature and reactivity necessitate careful handling under inert conditions, making it a specialised chemical for advanced laboratory and industrial applications.
- IUPAC
- Dimethylboron bromide
- Synonyms
- Dimethylboron bromide

Organic Synthesis Reagent
Bromodimethylborane is employed as a versatile reagent in various organic transformations. Its utility lies in its ability to participate in reactions requiring a source of dimethylboryl groups or as a precursor for other organoboron compounds.
Reduction Reactions
This compound can function as a reducing agent in specific synthetic pathways. Its controlled reactivity allows for selective reductions in complex molecular architectures, contributing to the synthesis of fine chemicals and pharmaceutical intermediates.
Boron Chemistry
As a member of the borane family, Bromodimethylborane is instrumental in exploring and expanding the field of boron chemistry. It enables the synthesis of novel boron-containing materials and organometallic complexes.
| Molecular weight | 120.78 |
|---|---|
| Linear formula | (CH3)2BBr |
| Boiling point | 31-32 °C(lit.) |
| Density | 1.238 g/mL at 25 °C(lit.) |
| Vapour pressure | 10.4 psi (20 °C) |
| Storage temperature | 2-8°C |
| Melting point | −129 °C(lit.) |


Hazard statements
- H224Extremely flammable liquid and vapour
- H250Catches fire spontaneously if exposed to air
- H314Causes severe skin burns and eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P222Do not allow contact with air
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P422
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | -37 °C / -34.6 °F |
| Transport (UN / ADR) | UN 2845 4.2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 17-34 |
| Safety statements (S) | 16-26-27-36/37/39-45 |
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 Bromodimethylborane primarily used for?
+
Bromodimethylborane is primarily used as a reagent in organic synthesis, particularly in reduction reactions and as a synthetic building block for creating other organoboron compounds.
What is the CAS number and formula for Bromodimethylborane?
+
The CAS number for Bromodimethylborane is 5158-50-9, and its linear formula is (CH₃)₂BBr.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Bromodimethylborane in technical/research grades. We do not represent this product as meeting USP/BP/EP pharmacopoeia standards.
How should Bromodimethylborane be handled safely?
+
Bromodimethylborane is a highly flammable liquid and vapour, causes severe skin burns and eye damage, and is pyrophoric. It must be handled with extreme caution under an inert atmosphere (e.g., nitrogen or argon), using appropriate personal protective equipment including a face shield, gloves, and respiratory protection. Avoid contact with ignition sources and oxidising agents.
Is Bromodimethylborane available for export?
+
Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Bromodimethylborane, to customers worldwide.
How can I request a sample or quote for Bromodimethylborane?
+
To request a sample or a quotation for Bromodimethylborane, please contact our sales team via the website or by phone. Provide your specific requirements and shipping details.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis