Description

1,1-Dichloro-2-Butene is a versatile chlorinated olefin intermediate with significant utility in organic synthesis. Its unique structure, featuring both a dichloromethyl group and a reactive double bond, makes it a valuable building block for the production of more complex chemical entities. This compound is primarily sought after by manufacturers in the agrochemical and pharmaceutical sectors for the synthesis of active ingredients and specialty chemicals.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of certain herbicides, insecticides, and fungicides.
• Pharmaceutical Synthesis: Used as a versatile alkylating agent and building block in the production of active pharmaceutical ingredients (APIs).
• Specialty Chemical Manufacturing: Serves as an intermediate for flavors, fragrances, and performance chemicals.
• Polymer & Resin Modifier: Can be utilized to introduce specific functional groups into polymer chains to alter material properties.
• Organic Synthesis Reagent: Employed in research and development for creating novel organic compounds via addition or substitution reactions.
• Cross-coupling Reactions: Acts as a substrate in palladium-catalyzed cross-coupling reactions to form carbon-carbon bonds.

Basic Information

Product Name	1,1-Dichloro-2-Butene
CAS No.	56800-09-0
Molecular Formula	C4H6Cl2
Molecular Weight	124.99 g/mol
Synonyms	1,1-Dichlorobut-2-ene; 2-Butene, 1,1-dichloro-; Dichlorobutene; NSC 60545; (E)-1,1-Dichloro-2-butene; (Z)-1,1-Dichloro-2-butene; 1,1-Dichloro-2-butene (mixed isomers)
EINECS	Contact for details

Quality Control

Our 1,1-Dichloro-2-Butene is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets exacting standards for industrial and synthetic applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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, keep containers tightly sealed. Recommended storage temperature is 2-8°C to maximize stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0% (Isomer mixture)
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	1.18 - 1.22
Refractive Index (n20D)	1.460 - 1.470

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