Description

3,4-Diethoxyphenylacetylene is a high-purity, versatile alkyne derivative used as a critical building block in advanced organic synthesis. This compound matters for its role as a key intermediate in constructing complex molecular architectures, particularly in pharmaceutical and materials science research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications such as cross-coupling reactions and the synthesis of bioactive molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring a substituted phenylacetylene moiety.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a monomer or building block for the development of advanced polymers, liquid crystals, and organic electronic materials.
• Cross-Coupling Reactions: An essential substrate in Sonogashira, Heck, and other palladium-catalyzed coupling reactions to form carbon-carbon bonds.
• Chemical Research: Employed in academic and industrial laboratories for methodological development and the exploration of new synthetic pathways.
• Ligand Synthesis: Used to prepare specialized ligands for catalysis and coordination chemistry.

Basic Information

Product Name	3,4-Diethoxyphenylacetylene
CAS No.	1159511-93-9
Molecular Formula	C₁₂H₁₄O₂
Molecular Weight	190.24 g/mol
Synonyms	1,2-Diethoxy-4-ethynylbenzene; 4-Ethynyl-1,2-diethoxybenzene; 3,4-Diethoxyethynylbenzene; (3,4-Diethoxyphenyl)acetylene; 1-Ethynyl-3,4-diethoxybenzene; 3,4-Diethoxyphenylethyne
EINECS	Contact for details

Quality Control

Our 3,4-Diethoxyphenylacetylene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) are provided with every shipment, detailing all relevant specifications. We are committed to meeting the stringent requirements of research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to prevent moisture condensation.

Specification

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

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