Description

1,1,4,4-Tetraethoxy-2-Butyne, 99% is a high-purity, specialty acetylenic diether compound, serving as a versatile and protected building block in advanced organic synthesis. Its value lies in its ability to act as a masked acetylene equivalent, enabling controlled reactivity in the formation of complex molecular frameworks. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise and reliable intermediates for constructing carbon chains and heterocycles.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules, particularly those requiring specific acetylene-derived linkages or heterocyclic structures.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides where its unique carbon skeleton is incorporated into active ingredients.
• Organic Synthesis Building Block: Functions as a protected diacetylene synthon for constructing conjugated systems, macrocycles, and natural product analogs in research and development.
• Material Science Research: Employed in the development of novel polymers, dendrimers, and organic electronic materials due to its rigid, linear structure and ethoxy protecting groups.
• Cross-Coupling Reactions: Serves as a substrate in Sonogashira and other palladium-catalyzed coupling reactions to form carbon-carbon bonds after deprotection.

Basic Information

Product Name	1,1,4,4-Tetraethoxy-2-Butyne, 99%
CAS No.	3975-08-4
Molecular Formula	C12H22O4
Molecular Weight	230.30 g/mol
Synonyms	2-Butyne-1,1,4,4-tetrol Tetraethyl Ether; 1,1,4,4-Tetraethoxy-2-butyne; Tetraethyl 2-Butyne-1,1,4,4-tetracarboxylate Ether; 2-Butyne-1,1,4,4-tetrayl Tetraethyl Ether; Acetylene Diether Derivative; 1,1,4,4-Tetraethoxybut-2-yne; Protected Butynediol Derivative
EINECS	Contact for details

Quality Control

Our 1,1,4,4-Tetraethoxy-2-Butyne, 99% is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure it meets the declared 99% minimum purity specification and is free from critical impurities. A comprehensive Certificate of Analysis (COA) detailing identity, purity (by GC/HPLC), and specific impurity profiles is provided with every shipment to ensure traceability and batch-to-batch consistency for your critical processes.

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 acids and oxidizing agents. For long-term storage, maintaining the container under an inert atmosphere (e.g., nitrogen or argon) is recommended to prevent potential oxidation. Recommended storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 99.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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