Description

3-Octyne, 5-Methyl- is a high-purity, branched-chain alkyne building block with the CAS registry number 62108-33-2. This specialty intermediate is valued for its unique molecular structure, which enables precise synthesis in advanced organic chemistry and materials science. It is primarily sought by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for introducing specific carbon frameworks.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, where its alkyne functionality allows for selective chemical modifications.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers and advanced materials with tailored properties.
• Organic Synthesis Building Block: Employed in academic and industrial laboratories for complex organic transformations, including Sonogashira coupling and cycloaddition reactions.
• Flavor & Fragrance Industry: Utilized as a precursor for synthesizing specific aroma compounds and odorants.
• Liquid Crystal & Electronic Materials: Investigated for use in the synthesis of organic semiconductors and liquid crystal display (LCD) components.

Basic Information

Product Name	3-Octyne, 5-Methyl-
CAS No.	62108-33-2
Molecular Formula	C9H16
Molecular Weight	124.22 g/mol
Synonyms	5-Methyl-3-octyne; 3-Octyne, 5-methyl-; 5-Methyloct-3-yne; Methyloctyne; Branched C9 alkyne
EINECS	Contact for details

Quality Control

Our 3-Octyne, 5-Methyl- is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including GC, NMR, and FTIR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support compliance with global regulatory frameworks, including REACH.

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, and open flames. This material is flammable and moisture-sensitive; store under an inert atmosphere such as nitrogen for long-term stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	~0.75 g/mL
Boiling Point	~155-160 °C

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