Description

1,4-Dichloro-2-Butyne is a versatile halogenated alkyne building block of significant importance in advanced organic synthesis. Its high reactivity, stemming from the combination of chlorine atoms and a triple bond, makes it a critical intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those requiring specific alkyne or chloroalkyne functionalities.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its reactive sites allow for the creation of potent bioactive molecules.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the development of specialty polymers, resins, and advanced materials with tailored properties.
• Organic Synthesis Building Block: Employed in cycloaddition reactions, nucleophilic substitutions, and as a scaffold for heterocyclic compound formation in research and development.
• Ligand & Catalyst Preparation: Utilized in the synthesis of specialized ligands and organometallic catalysts for asymmetric synthesis and other catalytic processes.
• Chemical Research & Development: A valuable reagent for exploring new synthetic methodologies and creating libraries of compounds for screening in various industries.

Basic Information

Item	Details
Product Name	1,4-Dichloro-2-Butyne
CAS No.	821-10-3
Molecular Formula	C4H4Cl2
Molecular Weight	122.98 g/mol
Synonyms	1,4-Dichlorobut-2-yne; Dichlorobutylene; 2-Butyne, 1,4-dichloro-; DCBU; 1,4-Dichloro-2-butyne; But-2-yne-1,4-diyl dichloride
EINECS	212-482-9

Quality Control

Our 1,4-Dichloro-2-Butyne is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including assay by GC or HPLC and impurity profiling, to ensure it meets the high-purity standards required for sensitive synthetic applications. A Certificate of Analysis (COA) detailing purity, identity, and specific test results is provided with each shipment to guarantee traceability and consistency for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, containers must be kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	~1.27 g/cm³
Boiling Point	~150-155°C

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