Description

3-Heptyne is a linear seven-carbon terminal alkyne, a versatile building block in organic synthesis and materials science. Its terminal alkyne functionality makes it a valuable intermediate for constructing more complex molecules via coupling reactions and cycloadditions. This compound is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise carbon chain elongation and functional group introduction.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly for introducing specific alkyne-containing pharmacophores.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators where the alkyne group is integral to biological activity.
• Material Science Research: Acts as a monomer or precursor in the development of specialized polymers, conductive materials, and metal-organic frameworks (MOFs).
• Organic Synthesis Reagent: Employed in Sonogashira, Glaser, and other metal-catalyzed cross-coupling reactions to form new carbon-carbon bonds.
• Flavor & Fragrance Industry: Utilized as a precursor for synthesizing specific aroma compounds and odorants with linear carbon structures.
• Academic & Industrial R&D: A fundamental reagent for methodological development in synthetic organic chemistry and catalysis studies.

Basic Information

Product Name	3-Heptyne
CAS No.	2586-89-2
Molecular Formula	C7H12
Molecular Weight	96.17 g/mol
Synonyms	Hept-3-yne; 1-Ethyl-2-propylacetylene; 3-Heptine; Butylmethylacetylene; 1-Propyl-2-butylacetylene; 3-Heptin; 3-Heptyne (linear)
EINECS	219-970-7

Quality Control

Our 3-Heptyne is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry standards and can provide material tailored to research or commercial-scale requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its highly volatile nature, containers must be kept tightly sealed and upright to prevent leakage and evaporation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	0.73 - 0.75 g/mL
Boiling Point	~ 99 - 101 °C

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