Description

2,2,5,5,6,6,9,9-Octamethyl-3,7-Decadiyne is a highly volatile, branched aliphatic diyne with a unique symmetrical structure, serving as a valuable specialty intermediate in advanced organic synthesis. Its primary value lies in its ability to act as a rigid, hydrophobic building block for constructing complex molecular architectures. This compound is essential for R&D and production chemists in the pharmaceutical, agrochemical, and material science sectors, where it is used to develop novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Used in the synthesis of complex drug candidates, particularly those requiring rigid, lipophilic scaffolds.
• Agrochemical Synthesis: Serves as a key building block for creating novel pesticides and herbicides with enhanced stability and activity.
• Material Science Research: Employed in the development of specialty polymers, dendrimers, and liquid crystals due to its symmetrical, bulky structure.
• Organic Semiconductor Precursor: Investigated for use in creating conjugated molecular systems for electronic applications.
• Cross-linking Agent: Its diyne functionality allows it to act as a cross-linker in polymer chemistry under specific conditions.
• Ligand Synthesis: Used to prepare sophisticated, sterically demanding ligands for catalysis.
• Academic & Industrial R&D: A valuable tool for methodological development and exploring new chemical spaces in synthetic chemistry.

Basic Information

Item	Detail
Product Name	2,2,5,5,6,6,9,9-Octamethyl-3,7-Decadiyne
CAS No.	17553-35-4
Molecular Formula	C₁₈H₃₀
Molecular Weight	246.43 g/mol
Synonyms	3,7-Decadiyne, 2,2,5,5,6,6,9,9-octamethyl-; Octamethyl-3,7-decadiyne; 1,1,4,4-Tetramethyl-2-(3,3,6,6-tetramethyl-1-heptyn-5-ynyl)cyclobutane; Symmetrical Octamethyl Decadiyne; Branched C18 Diyne; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Every batch of 2,2,5,5,6,6,9,9-Octamethyl-3,7-Decadiyne is produced and tested under a strict Quality Management System. We employ advanced analytical techniques including GC, GC-MS, NMR, and IR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment. Our quality commitment ensures the material meets the high standards required for research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at room temperature (15-25°C/59-77°F). Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use and stored away from heat, sparks, and open flame. Keep under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent potential degradation.

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%
Residue on Evaporation	≤ 0.1%

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