Description

Ethyl Propiolate is a versatile and highly reactive alkyne ester, a key building block in organic synthesis. Its terminal acetylene functionality makes it an essential reagent for constructing complex molecular architectures through reactions like cycloadditions and nucleophilic additions. This compound is particularly valuable for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce propiolate moieties efficiently. The product is supplied under the identifier CAS NO 823-47-2.

Application

• Pharmaceutical Intermediates: A crucial building block for synthesizing active pharmaceutical ingredients (APIs), particularly those containing heterocyclic or acetylene-based structures.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators that require specific alkyne functionalities.
• Polymer & Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers, coatings, and advanced materials with tailored properties.
• Organic Synthesis Reagent: Employed in Huisgen cycloaddition (click chemistry), Michael additions, and other carbon-carbon bond-forming reactions in research and development.
• Flavor & Fragrance Industry: Acts as a precursor for synthesizing specific aroma compounds and flavoring agents.
• Chemical Research: A valuable tool for academic and industrial laboratories exploring new synthetic methodologies and compound libraries.

Basic Information

Product Name	Ethyl Propiolate
CAS No.	823-47-2
Molecular Formula	C5H6O2
Molecular Weight	98.10 g/mol
Synonyms	Ethyl 2-Propynoate; Propiolic Acid Ethyl Ester; Ethyl Acetylene carboxylate; Ethyl Propynoate; Acetylene carboxylic acid ethyl ester; Ethyl propiolate (stabilized with BHT); Ethyl propiolate (stabilized)
EINECS	212-512-5

Quality Control

Our Ethyl Propiolate is manufactured under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including assay by GC or HPLC, identity confirmation (IR), and impurity profiling, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place away from heat, sparks, and open flame. Due to its highly volatile nature, keep container tightly sealed when not in use. Recommended storage temperature is 2-8°C (refrigerated) for extended stability, although short-term storage at controlled room temperature (15-25°C) is acceptable. Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Stabilizer (BHT)	50-200 ppm

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