Description

2,3-Dibromo-1,4-Dichlorobut-2-Ene CAS NO 36038-57-0 is a halogenated alkene building block of significant interest in advanced organic synthesis. Its unique structure, featuring both bromine and chlorine atoms on an unsaturated backbone, makes it a versatile precursor for constructing complex molecules. This compound is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and specialty intermediates.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly for introducing halogenated motifs.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its halogen atoms contribute to biological activity.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, nucleophilic substitution, and cross-coupling reactions to create complex, functionalized organic compounds.
• Material Science Research: Investigated as a monomer or cross-linking agent for the development of specialty polymers with unique properties.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D labs for methodology development and exploring new chemical spaces.

Basic Information

Product Name	2,3-Dibromo-1,4-Dichlorobut-2-Ene
CAS No.	36038-57-0
Molecular Formula	C4H2Br2Cl2
Molecular Weight	272.77 g/mol
Synonyms	1,4-Dichloro-2,3-dibromo-2-butene; 2-Butene, 1,4-dichloro-2,3-dibromo-; (E)-1,4-Dichloro-2,3-dibromo-2-butene; (Z)-1,4-Dichloro-2,3-dibromo-2-butene; 2,3-Dibromo-1,4-dichloro-2-butene; DBDB; Halogenated Butene Intermediate
EINECS	Contact for details

Quality Control

Our 2,3-Dibromo-1,4-Dichlorobut-2-Ene is produced and handled under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is moisture-sensitive; ensure containers are kept tightly sealed to exclude moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Isomer Ratio (GC)	Specified on COA
Water Content (KF)	≤ 0.5%

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