Description

(E)-1,4-Dibromobut-2-Ene is a versatile brominated alkene building block with significant utility in synthetic organic chemistry. Its primary value lies in its ability to act as a bifunctional alkylating agent, enabling the construction of complex molecular frameworks through cross-coupling and cyclization reactions. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality raw materials for their synthesis pipelines.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex heterocyclic compounds.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and other crop protection agents.
• Ligand and Catalyst Development: Serves as a building block for creating specialized ligands and organometallic catalysts.
• Polymer & Material Science: Employed in the synthesis of functionalized polymers, liquid crystals, and specialty monomers.
• Cross-Coupling Reactions: A valuable substrate in Suzuki, Heck, and other palladium-catalyzed cross-coupling methodologies.
• Organic Synthesis Research: A fundamental reagent in academic and industrial R&D for constructing C-C and C-heteroatom bonds.

Basic Information

Product Name	(E)-1,4-Dibromobut-2-Ene
CAS No.	821-06-7
Molecular Formula	C4H6Br2
Molecular Weight	213.90 g/mol
Synonyms	trans-1,4-Dibromo-2-butene; (E)-1,4-Dibromo-2-butene; 2-Butene, 1,4-dibromo-, (E)-; 1,4-Dibromo-trans-2-butene; (E)-1,4-Dibromobutene; 1,4-Dibromo-2-butene (trans); Butenediyl dibromide; NSC 60548
EINECS	212-477-8

Quality Control

Our (E)-1,4-Dibromobut-2-Ene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency meet the high standards required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and reducing agents. Recommended storage temperature is 2-8°C for long-term stability. The compound is moisture-sensitive; keep container tightly sealed under an inert atmosphere if specified.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Isomeric Purity ((E)-isomer)	≥ 99.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.