Description

Ethyl 4-Ethynylbenzoate is a high-purity organic building block featuring both an ester and a terminal alkyne functional group. This unique bifunctional structure makes it a versatile intermediate for synthesizing complex molecules in advanced research and development. It is primarily utilized by pharmaceutical, agrochemical, and material science industries for applications requiring precise molecular assembly.

Application

• Pharmaceutical Intermediate: A key synthon in the development of active pharmaceutical ingredients (APIs), particularly for compounds requiring alkyne-azide cycloaddition (Click Chemistry).
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a monomer or cross-linking agent in the synthesis of specialty polymers, dendrimers, and advanced organic frameworks.
• Liquid Crystal & OLED Materials: Employed in the creation of organic electronic materials and liquid crystal displays due to its rigid benzoate core and reactive alkyne group.
• Chemical Biology & Proteomics: Acts as a probe or linker for bioconjugation and labeling studies in drug discovery and diagnostic research.
• Academic & Industrial R&D: A valuable reagent for method development and exploratory synthesis in organic chemistry laboratories.

Basic Information

Product Name	Ethyl 4-Ethynylbenzoate
CAS No.	10602-03-6
Molecular Formula	C11H10O2
Molecular Weight	174.20 g/mol
Synonyms	4-Ethynylbenzoic Acid Ethyl Ester; Ethyl p-Ethynylbenzoate; Benzoic acid, 4-ethynyl-, ethyl ester; p-Ethynyl Benzoic Acid Ethyl Ester; 4-Carbethoxyphenylacetylene
EINECS	Contact for details

Quality Control

Our Ethyl 4-Ethynylbenzoate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and identity confirmation. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all relevant specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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