Benzyl bromide

Benzyl bromide

α-Bromotoluene; Phenylmethyl bromide; Benzenemethanebromide; Bromomethylbenzene

CAS 100-39-0

Chemical Formula C₇H₇Br

Molecular Weight 171.04 g/mol

Benzyl bromide is an organic compound commonly used as an intermediate in the synthesis of dyes, pharmaceuticals, and fragrances. It also serves as an alkylating agent in organic chemistry and laboratory research.

Industrial Uses

1. Pharmaceuticals

  • Benzylation of Active Pharmaceutical Ingredients (APIs): Used to protect hydroxyl, amino, or carboxylic acid groups by forming benzyl ethers, esters, or amines. This protecting group strategy is crucial in multi-step drug synthesis.
  • Synthesis of Benzylated Intermediates: Acts as a reagent in preparing intermediates for drugs such as antipsychotics, antihistamines, and antimicrobials, where benzyl groups help alter lipophilicity and activity.
  • Enhancing Drug Bioavailability: The introduction of benzyl groups via benzyl bromide can enhance solubility or membrane permeability of pharmaceutical molecules.

2. Agrochemicals

  • Intermediate for Pesticides and Fungicides: Benzyl bromide is used to synthesize benzyl-substituted ureas, thioureas, and heterocycles with strong pesticidal activity.
  • Alkylation in Herbicide Design: Increases hydrophobicity and target binding in herbicide structures, improving efficiency against resistant weeds.
  • Synthesis of Benzyl Esters: Used to make benzyl-protected carboxylic acids during the preparation of bioactive agrochemical compounds.

3. Performance Chemicals

  • Synthesis of Benzyl Ethers and Esters: Used extensively in the production of flavor and fragrance esters, plasticizers, and other aromatic fine chemicals.
  • Fragrance Intermediate: Forms benzylated phenols and alcohols used in perfume bases, enhancing floral and fruity notes.
  • Specialty Lubricants & Additives: Benzyl derivatives are used to manufacture high-temperature lubricants and fuel additives.

4. Polymers & Resins 

  • Polymer Functionalization: Benzyl bromide introduces aromatic or benzyl moieties into polymers to alter thermal stability, UV resistance, or surface energy.
  • Crosslinking and Curing Additive: Used in specialty resin systems, where benzyl groups enhance adhesion, rigidity, or chemical resistance.
  • Synthesis of Benzylated Monomers: Precursors for modified polystyrene, polyurethanes, and other custom performance plastics.

5. Fabric Solutions

  • Intermediate in Dye Molecule Synthesis: Used to introduce benzyl groups into dye backbones, enhancing solubility, gloss, and color fastness.
  • Reactive Dye Modifier: Improves binding efficiency of dyes to textiles by creating benzyl-functional groups that improve anchoring.

6. Paints, Coatings & Adhesives 

  • Resin Enhancer: Used to create benzylated epoxy or acrylic resins, providing stronger bonding, improved clarity, and chemical resistance.
  • Additive for Industrial Sealants: Helps form hydrophobic crosslinking sites, increasing the durability and adhesion of sealants under harsh conditions.

Specifications

Assay ≥ 99%
Appearance Colorless to pale yellow liquid
Odor Pungent, tear-inducing odor
Boiling Point 201–203 °C
Melting Point -3 °C
Density 1.438 g/cm³ at 20 °C
Solubility Slightly soluble in water; soluble in ethanol and ether
Viscosity ~2.1 mPa·s at 25 °C
Flash Point 96 °C (closed cup)

Hazard Symbols

Corrosives
Irritants/Sensitisers/Other Hazards
Environmental Hazard

FAQs

1. What is the current price of Benzyl bromide in India?
The price Benzyl bromide   can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.630 100 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Benzyl bromide in India?
You can purchase Benzyl bromide from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Benzyl bromide?
Our minimum order quantity (MOQ) Benzyl bromide is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Benzyl bromide supplied by Multichem?                   
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.