1,3-Dibromopropane

1,3-Dibromopropane

Trimethylene dibromide; Propane, 1,3-dibromo-; 1,3-Propylene dibromide; 1,3-DBP

CAS 109-64-8

Chemical Formula C₃H₆Br₂

Molecular Weight 201.89 g/mol

1,3-Dibromopropane is an organic compound commonly used as a building block in the synthesis of pharmaceuticals, agrochemicals, and polymers. It serves as a versatile intermediate for introducing three-carbon chains with reactive bromine ends in organic synthesis.

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Industrial Uses

1. Pharmaceuticals

  • Bifunctional Alkylating Agent in Drug Synthesis: 1,3-Dibromopropane is used to link two functional groups (e.g., amines or thiols) through a three-carbon chain, making it valuable in medicinal chemistry for synthesizing heterocycles, macrocycles, or bioactive molecules.
  • Spacer for Drug Conjugates: It acts as a molecular spacer in the development of prodrugs and targeted drug delivery systems, helping connect active moieties to carriers without affecting activity.

2. Agrochemicals

  • Intermediate for Insecticides and Fungicides: Used as a building block for pesticide synthesis, especially for compounds where two functional heads need to be joined by a short hydrocarbon spacer (C₃). This can improve lipophilicity, adherence, and biocidal activity.
  • Quaternary Ammonium Derivative Base: Reacted with two tertiary amines to form bis-quaternary ammonium salts, which are used as broad-spectrum disinfectants or soil treatment agents.

3. Polymers & Resins

  • Cross-Linking Agent in Polymer Chemistry: Due to its two bromine atoms, 1,3-dibromopropane serves as a cross-linker in the preparation of thermoset resins, elastomers, and specialty polymers, adding strength and rigidity.
  • Modifier for Functional Monomers: Acts as a chain-extension or modification reagent, allowing the creation of branched or network polymers with tailored thermal and mechanical properties.

4. Performance Chemicals

  • Precursor for Crown Ethers and Cyclic Compounds: Used in the synthesis of macrocyclic ligands, including crown ethers and cryptands, by linking polyfunctional reagents through alkylation.
  • Intermediate for Surfactants and Ionic Liquids: Forms bifunctional intermediates that can be further derivatized into charged species used in ionic liquids, custom surfactants, and electrochemical additives.
  • Reagent for Studying SN2 Reactions: As a symmetrical dihalide, it is used in organic chemistry education and research to study SN2 mechanisms and reaction kinetics.
  • Spacer for Molecular Modeling: Acts as a model linker in supramolecular chemistry, molecular probes, and synthetic biology where a rigid 3-carbon linker is required.

Specifications

Assay ≥ 98%
Appearance Colorless to pale yellow liquid
Odor Mild sweet odor
Boiling Point ~196–199 °C
Melting Point ~−35 °C
Density ~1.98 g/cm³ at 20 °C
Solubility Insoluble in water; soluble in ethanol, ether
Viscosity ~2.7 cP at 25 °C
Flash Point ~91 °C (closed cup)

Hazard Symbols

Acute Toxicity
Irritants/Sensitisers/Other Hazards

FAQs

1. What is the current price of 1,3-Dibromopropane in India?
The price of 1,3-Dibromopropane 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 1,3-Dibromopropane in India?
You can purchase 1,3-Dibromopropane 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 1,3-Dibromopropane?
Our minimum order quantity (MOQ) for 1,3-Dibromopropane 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 1,3-Dibromopropane 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.