Description

4-Hexynoic Acid, 2-Methyl-, Ethyl Ester is a specialized alkyne-containing ester, a high-purity intermediate valued for its unique molecular architecture that enables precise synthetic transformations. This compound is critical for advanced research and development in fine chemical synthesis, particularly where the introduction of a branched alkyne moiety is required. It serves as a key building block for scientists and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A versatile building block for the synthesis of complex drug candidates, especially those requiring alkyne functional groups for click chemistry or structure-activity relationship (SAR) studies.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, where its specific structure can contribute to unique biological activity.
• Liquid Crystal & Advanced Material Precursor: Serves as a monomer or intermediate in the production of specialty polymers and organic electronic materials with tailored properties.
• Organic Synthesis Reagent: Employed in academic and industrial R&D labs for constructing complex organic molecules, leveraging the reactivity of the alkyne and ester functional groups.
• Flavor & Fragrance Ingredient Intermediate: Used in the synthesis of specialty esters that contribute to unique sensory profiles in high-value applications.

Basic Information

Product Name	4-Hexynoic Acid, 2-Methyl-, Ethyl Ester
CAS No.	116484-93-6
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	Ethyl 2-Methyl-4-hexynoate; 2-Methyl-4-hexynoic Acid Ethyl Ester; Ethyl 2-Methylhex-4-ynoate; 4-Hexynoic acid, 2-methyl-, ethyl ester; 2-Methyl-4-hexynoic acid ethyl ester; Ethyl (2-methyl-4-hexynoate)
EINECS	Contact for details

Quality Control

Our production of 4-Hexynoic Acid, 2-Methyl-, Ethyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopy (IR, NMR), to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming compliance with agreed specifications. Our quality system is designed to support cGMP and ISO standards for traceability and reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	Contact for details
Density (g/mL at 20°C)	Contact for details

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