Description

1,3-Dichloro-2-Butene is a versatile chlorinated organic intermediate with significant utility in fine chemical synthesis. Its high reactivity, stemming from the allylic chloride groups, makes it a valuable building block for creating more complex molecules. This compound is primarily sought by manufacturers in the agrochemical, pharmaceutical, and specialty chemical industries for use in cross-coupling reactions, cyclizations, and as a precursor to various functionalized derivatives.

Application

• Agrochemical Intermediate: Key precursor in the synthesis of advanced pesticides, herbicides, and fungicides.
• Pharmaceutical Synthesis: Serves as a versatile building block for active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Specialty Chemical Manufacturing: Used in the production of flavors, fragrances, dyes, and polymer additives.
• Cross-Coupling Reactions: Acts as an electrophile in palladium-catalyzed reactions like Heck, Suzuki, and Negishi couplings.
• Organic Synthesis Reagent: Employed in laboratory-scale and industrial organic synthesis for introducing chlorinated butene units.
• Chemical Research & Development: Utilized in R&D for exploring new synthetic pathways and novel compound libraries.

Basic Information

Product Name	1,3-Dichloro-2-Butene
CAS No.	926-57-8
Molecular Formula	C4H6Cl2
Molecular Weight	124.99 g/mol
Synonyms	1,3-Dichlorobut-2-ene; 2-Butene, 1,3-dichloro-; (E)-1,3-Dichloro-2-butene; (Z)-1,3-Dichloro-2-butene; trans-1,3-Dichloro-2-butene; cis-1,3-Dichloro-2-butene; Dichlorobutene; NSC 60545
EINECS	213-143-9

Quality Control

Our 1,3-Dichloro-2-Butene is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong bases and oxidizing agents. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Isomer Ratio (trans/cis)	Contact for details
Water Content (KF)	≤ 0.1%
Density (20°C)	~1.18 g/mL
Boiling Point	~123-125°C

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