Description

trans-1,4-Dibromo-2-Butene is a versatile brominated alkene intermediate of significant importance in synthetic organic chemistry. Its primary value lies in its role as a key building block for the synthesis of more complex molecules, particularly in pharmaceutical and agrochemical research and development. This compound is essential for chemical manufacturers and R&D laboratories engaged in creating active ingredients, specialty polymers, and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and other crop protection agents.
• Polymer Chemistry: Serves as a monomer or cross-linking agent in the development of specialty polymers and resins.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, nucleophilic substitutions, and as a source of the 1,4-dibromo moiety for chain extension.
• Ligand and Catalyst Preparation: Useful in the preparation of organometallic complexes and catalysts for various chemical transformations.
• Laboratory Research: A valuable reagent for academic and industrial research in medicinal and synthetic chemistry.

Basic Information

Product Name	trans-1,4-Dibromo-2-Butene
CAS No.	6974-12-5
Molecular Formula	C4H6Br2
Molecular Weight	213.90 g/mol
Synonyms	(E)-1,4-Dibromo-2-butene; trans-1,4-Dibromo-2-butene; 2-Butene, 1,4-dibromo-, (E)-; 1,4-Dibromo-trans-2-butene; (E)-1,4-Dibromobut-2-ene; trans-2-Butene-1,4-dibromide; 1,4-Dibromo-2-butene (trans); Butenediyl dibromide
EINECS	230-222-8

Quality Control

Our trans-1,4-Dibromo-2-Butene is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including GC and HPLC, to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density	~1.8 g/mL
Boiling Point	~85-90°C (10 mmHg)

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