Description

cis-3,4-Dichlorocyclobutene is a versatile halogenated cyclobutene derivative, a key building block in advanced organic synthesis. Its strained ring structure and reactive chlorine substituents make it a valuable precursor for creating complex molecular architectures. This compound is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a critical synthon for constructing complex heterocyclic and carbocyclic scaffolds found in active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, leveraging its reactive sites for structural diversification.
• Material Science Research: Acts as a monomer or precursor for developing specialized polymers, liquid crystals, or other advanced materials with unique electronic or structural properties.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions, cross-coupling reactions, and other cycloadditions to introduce the dichlorocyclobutene moiety into target molecules.
• Chemical Research & Development: A fundamental tool in academic and industrial R&D labs for exploring new reaction methodologies and synthesizing novel chemical entities.

Basic Information

Product Name	cis-3,4-Dichlorocyclobutene
CAS No.	2957-95-1
Molecular Formula	C4H4Cl2
Molecular Weight	122.98 g/mol
Synonyms	3,4-Dichlorocyclobutene; 1,2-Dichloro-3-cyclobutene; cis-1,2-Dichlorocyclobut-3-ene; 3-Cyclobutene-1,2-dichloride; Cyclobut-3-ene-1,2-dichloride; 3,4-Dichloro-1-cyclobutene
EINECS	220-985-8

Quality Control

Our cis-3,4-Dichlorocyclobutene is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP and ISO 9001 standards for reliable supply to regulated industries.

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 strong acids and incompatible organic solvents. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	~1.30 g/mL

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