Description

But-2-Ynylene Bis(Chloroacetate) is a specialized organic synthesis intermediate featuring a reactive alkyne core flanked by chloroacetate ester groups. This unique bifunctional structure makes it a valuable building block for constructing complex molecular architectures, particularly in pharmaceutical and advanced material research. It is sought after by R&D chemists and process development scientists in the fine chemical, agrochemical, and polymer industries for its ability to introduce specific functional handles into target molecules.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring alkyne or ester-linked pharmacophores.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators where its reactive groups enable modular compound design.
• Polymer & Material Science: Acts as a cross-linking agent or monomer for creating specialty polymers, resins, and coatings with tailored properties.
• Click Chemistry Reagent: The alkyne moiety makes it suitable for copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, a cornerstone of bioconjugation and material labeling.
• Organic Synthesis Building Block: Employed in academic and industrial research for constructing complex heterocycles, macrocycles, and dendrimers.
• Ligand & Catalyst Development: Utilized in the preparation of novel chelating ligands and organometallic catalysts for asymmetric synthesis.

Basic Information

Product Name	But-2-Ynylene Bis(Chloroacetate)
CAS No.	14569-76-7
Molecular Formula	C8H8Cl2O4
Molecular Weight	239.06 g/mol
Synonyms	1,4-Bis(chloroacetoxy)but-2-yne; 2-Butyne-1,4-diyl bis(chloroacetate); But-2-yne-1,4-diyl dichloroacetate; Dichloroacetic Acid 2-Butyne-1,4-diyl Ester; 1,4-Di(chloroacetoxy)-2-butyne; But-2-yn-1,4-diyl bis(chloroacetate); 2-Butynylene bis(chloroacetate)
EINECS	Contact for details

Quality Control

Our But-2-Ynylene Bis(Chloroacetate) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assessment and structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and amines. Recommended storage temperature is 2-8°C for long-term stability. The compound is moisture-sensitive; keep the container tightly sealed under an inert atmosphere if possible.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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