Description

3,5-Octadiyne-2,7-Dione (9Ci) is a specialized alkyne-dione compound with the CAS registry number 139565-87-0. This unique structure makes it a valuable high-purity building block for advanced organic synthesis and materials science research. It is primarily sought by R&D chemists and process developers in the pharmaceutical, agrochemical, and specialty polymer industries for creating novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of complex bioactive molecules and potential drug candidates.
• Agrochemical Research: Used in developing novel active ingredients with unique modes of action for crop protection.
• Material Science: Acts as a monomer or cross-linking agent in the development of advanced polymers and functional materials.
• Organic Synthesis: A versatile building block for constructing complex natural products and heterocyclic compounds via cycloaddition and coupling reactions.
• Academic & Industrial R&D: Employed in exploratory chemistry to study reaction mechanisms and develop new synthetic methodologies.

Basic Information

Product Name	3,5-Octadiyne-2,7-Dione (9Ci)
CAS No.	139565-87-0
Molecular Formula	C8H6O2
Molecular Weight	134.13 g/mol
Synonyms	3,5-Octadiyne-2,7-dione; 2,7-Octadiyne-4,5-dione; Octadiynedione; 139565-87-0; 3,5-Octadiyne-2,7-dione (9CI); 2,7-Dioxo-3,5-octadiyne
EINECS	Contact for details

Quality Control

Our 3,5-Octadiyne-2,7-Dione is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing including HPLC, GC, NMR, and FTIR to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality system supports compliance with cGMP and ISO standards for research and development applications.

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 heat, sparks, and open flame. Due to its light-sensitive nature, containers should be amber glass or opaque.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
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.