Description

2,5-Heptadiyne is a highly versatile alkyne compound with a linear diyne structure, serving as a critical building block in advanced organic synthesis. Its unique conjugated triple-bond system makes it a valuable precursor for the construction of complex molecular architectures, including polymers, pharmaceuticals, and specialty materials. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and material science industries seeking to develop novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those requiring rigid, linear carbon frameworks.
• Agrochemical Synthesis: Serves as a key precursor in creating advanced pesticides, herbicides, and plant growth regulators.
• Material Science Research: A fundamental monomer for developing conductive polymers, liquid crystals, and other advanced organic electronic materials.
• Organic Synthesis Building Block: Employed in cycloaddition reactions, such as the Huisgen azide-alkyne cycloaddition (click chemistry), to create complex heterocycles and macrocycles.
• Chemical Research & Development: Utilized in academic and industrial R&D labs for method development and exploring new reaction pathways in synthetic chemistry.
• Specialty Chemical Production: Acts as an intermediate in the manufacture of dyes, pigments, and optical brighteners.

Basic Information

Item	Details
Product Name	2,5-Heptadiyne
CAS No.	50428-63-2
Molecular Formula	C7H8
Molecular Weight	92.14 g/mol
Synonyms	Hepta-2,5-diyne; 1,2-Dipropynylethane; Dipropylacetylene; 2,5-Heptadiyne; 1,6-Heptadiyne (common misnomer); Linear C7 diyne; 1,2-Bis(prop-2-yn-1-yl)ethane (IUPAC-style)
EINECS	Contact for details

Quality Control

Our 2,5-Heptadiyne is produced under stringent quality management protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR) spectroscopy, to verify identity and quantify purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment, ensuring full transparency and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, open flames, and oxidizing agents. Due to its alkyne functionality, it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0% (Standard Grade)
Water Content (KF)	≤ 0.5%

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