Description

(E)-2,3-Dichloro-2-Butene is a versatile chlorinated olefin intermediate of significant importance in fine chemical synthesis. Its primary value lies in its role as a key building block for the production of more complex molecules, including agrochemicals, pharmaceuticals, and specialty polymers. This compound is particularly sought after by R&D chemists and process development teams in the chemical manufacturing sector for its reactive dichloroalkene functionality.

Application

• Agrochemical Intermediate: Serves as a crucial precursor in the synthesis of specific herbicides, fungicides, and insecticides.
• Pharmaceutical Synthesis: Used as a building block in the development of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Polymer & Resin Modification: Acts as a reactive monomer or cross-linking agent in the production of specialty polymers and coatings.
• Organic Synthesis Reagent: Employed in laboratories and pilot plants for Diels-Alder reactions and other cycloaddition processes.
• Chemical Research & Development: Utilized as a standard or starting material in exploratory chemistry for novel compound creation.
• Ligand & Catalyst Preparation: Functions as a precursor for synthesizing specialized ligands used in catalytic systems.

Basic Information

Product Name	(E)-2,3-Dichloro-2-Butene
CAS No.	1587-29-7
Molecular Formula	C4H6Cl2
Molecular Weight	124.99 g/mol
Synonyms	trans-2,3-Dichloro-2-butene; (E)-1,2-Dichloro-1-methylpropene; 2-Butene, 2,3-dichloro-, (E)-; 2,3-Dichloro-2-butene; trans-1,2-Dichloro-1-methylpropene; 2,3-Dichlorobut-2-ene
EINECS	216-433-8

Quality Control

Our (E)-2,3-Dichloro-2-Butene is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent isomeric composition. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 2°C and 25°C. Keep container tightly sealed when not in use to minimize moisture uptake and volatilization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Isomeric Purity ((E)-isomer)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Residue on Evaporation	≤ 0.1%

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