Description

3-Heptynoic Acid is a versatile alkyne-containing carboxylic acid building block with the CAS registry number 59862-93-0. This compound is valued for its terminal alkyne functionality, which enables advanced synthetic transformations like Sonogashira coupling and click chemistry. It serves as a critical intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to incorporate specific molecular architectures.

Application

• Pharmaceutical Intermediate: Synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those requiring alkyne moieties for targeted delivery or bio-conjugation.
• Agrochemical Synthesis: Production of advanced herbicides, fungicides, and plant growth regulators where the alkyne group imparts specific biological activity.
• Polymer & Material Science: A key monomer or cross-linking agent in the development of specialty polymers, resins, and functionalized surfaces with tailored properties.
• Organic Synthesis & Research: A fundamental building block in academic and industrial R&D for constructing complex organic molecules, natural product analogs, and molecular probes.
• Liquid Crystal & Electronic Materials: Used in the synthesis of components for display technologies and organic electronic devices due to its rigid linear structure.
• Chemical Biology Tool: Employed in bioconjugation strategies and the development of chemical probes for labeling and studying biological systems.

Basic Information

Product Name	3-Heptynoic Acid
CAS No.	59862-93-0
Molecular Formula	C7H10O2
Molecular Weight	126.15 g/mol
Synonyms	Hept-3-ynoic Acid; 3-Heptyn-1-oic Acid; 3-Heptynoic acid; 3-Heptynic Acid; 1-Carboxy-3-heptyne; 3-Heptynoic Acid (CAS 59862-93-0); 3-Heptynoic Acid, 98%
EINECS	Contact for details

Quality Control

Our 3-Heptynoic Acid is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including purity assay and impurity profiling, to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended long-term storage temperature is 2-8°C. The product is a strong acid/organic solvent; handle with appropriate personal protective equipment.

Specification

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