Description

trans-1,4-Dichloro-2-Butene is a versatile halogenated organic intermediate of significant industrial importance. Its bifunctional structure, featuring reactive allylic chloride and vinylic chloride groups, makes it a valuable building block for synthesizing more complex molecules. This compound is primarily sought after by manufacturers in the agrochemical, pharmaceutical, and specialty polymer sectors for its utility in cross-coupling reactions and as a precursor to various sulfur and nitrogen-containing compounds.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of certain herbicides, fungicides, and insecticides.
• Pharmaceutical Synthesis: Used as a versatile building block for creating active pharmaceutical ingredients (APIs) and other fine chemicals.
• Polymer & Resin Modifier: Serves as a cross-linking agent or monomer in the production of specialty polymers, ion-exchange resins, and coatings.
• Organic Synthesis Reagent: Employed in various organic transformations, including nucleophilic substitution and elimination reactions, to introduce the butenyl moiety.
• Chemical Research & Development: Utilized in R&D laboratories for exploring new synthetic pathways and material science applications.

Basic Information

Product Name	trans-1,4-Dichloro-2-Butene
CAS No.	110-57-6
Molecular Formula	C4H6Cl2
Molecular Weight	124.99 g/mol
Synonyms	(E)-1,4-Dichloro-2-butene; trans-1,4-Dichloro-2-butene; (E)-1,4-Dichlorobut-2-ene; 2-Butene, 1,4-dichloro-, (E)-; Dichlorobutene; 1,4-DCB; trans-Dichlorobutene; (E)-2-Butene-1,4-dichloride
EINECS	203-782-5

Quality Control

Our trans-1,4-Dichloro-2-Butene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and other relevant methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee compliance with your specifications and industry standards.

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 acids, bases, and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and volatilization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0% (trans-isomer)
Specific Gravity (20°C)	1.18 - 1.20
Refractive Index (n20/D)	1.488 - 1.492
Water Content (KF)	≤ 0.1%

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