Description

3-Octynoic Acid is a versatile medium-chain alkyne carboxylic acid that serves as a critical building block in advanced organic synthesis. Its terminal alkyne and carboxylic acid functionalities make it a valuable intermediate for constructing complex molecular architectures. This compound is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for applications ranging from medicinal chemistry to polymer modification.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those requiring alkyne moieties for click chemistry or as structural components.
• Agrochemical Synthesis: Serves as a key precursor in the development of new herbicides, fungicides, and plant growth regulators.
• Material Science & Polymer Chemistry: Acts as a monomer or cross-linking agent for creating specialty polymers, coatings, and advanced materials with tailored properties.
• Liquid Crystal & OLED Research: Employed in the synthesis of organic semiconductors and liquid crystal molecules for display technologies.
• Chemical Biology & Bioconjugation: The alkyne group is ideal for Huisgen cycloaddition (click chemistry) reactions, enabling labeling and modification of biomolecules.
• Fragrance & Flavor Intermediate: Used in the controlled synthesis of specific aroma chemicals and flavoring agents.
• Academic & Industrial Research: A fundamental reagent for methodological development in organic synthesis and catalysis studies.

Basic Information

Item	Details
Product Name	3-Octynoic Acid
CAS No.	92956-52-0
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	Oct-3-ynoic acid; 3-Octynoic acid; 3-Octyne-1-carboxylic acid; 3-Octyn-1-oic acid; 1-Heptyne-1-carboxylic acid (deprecated); 3-Octynoic acid, 98% (common purity grade)
EINECS	Contact for details

Quality Control

Our 3-Octynoic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all test results is provided with each shipment. We support compliance with relevant regulatory frameworks for research and industrial use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases, oxidizing agents, and sources of ignition. Due to its nature as a strong acid/organic solvent, handle with appropriate personal protective equipment and ensure compatibility with storage container materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
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.