Description

Acetylenedicarboxylic Acid Dichloride is a highly reactive acid chloride derivative of acetylenedicarboxylic acid, serving as a critical bifunctional building block in advanced organic synthesis. Its value lies in its ability to introduce the reactive acetylene dicarboxylate moiety, enabling the construction of complex molecular architectures and functional materials. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to create novel active ingredients and high-performance intermediates.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing heterocyclic compounds, prodrugs, and active pharmaceutical ingredients (APIs) with specific acetylene-based functionalities.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring precise molecular scaffolding.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialty polymers, dendrimers, and high-temperature resins.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions, [2+2] cycloadditions, and as a precursor for other acetylenedicarboxylate derivatives.
• Ligand & Chelator Precursor: Useful in the synthesis of complexing agents and ligands for catalysis and metal-organic frameworks (MOFs).
• Research & Development: A valuable tool in academic and industrial R&D for exploring new chemical reactions and material properties.

Basic Information

Product Name	Acetylenedicarboxylic Acid Dichloride
CAS No.	81378-06-5
Molecular Formula	C4Cl2O2
Molecular Weight	158.94 g/mol
Synonyms	Acetylenedicarbonyl Dichloride; Dichloroacetylenedicarboxylate; Acetylenedicarboxylic Dichloride; Butynedioyl Dichloride; 2-Butynedioyl Dichloride; Acetylenedicarboxylic Acid Chloride; Oxalylacetylene Dichloride
EINECS	Contact for details

Quality Control

Our Acetylenedicarboxylic Acid Dichloride is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 96.0%
Water Content (KF)	≤ 0.5%

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