Description

2-Methyl-1-Butene-3-Yne is a highly reactive, low molecular weight alkyne derivative, also known as isopropenylacetylene. This compound serves as a versatile and valuable chemical intermediate in organic synthesis, prized for its unique conjugated enyne structure. It is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular frameworks.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Specialty Polymer Monomer: Serves as a monomer or co-monomer for creating polymers with specific thermal or mechanical properties.
• Fine Chemical Production: Employed in the manufacture of flavors, fragrances, dyes, and other high-value fine chemicals.
• Organic Synthesis Reagent: Utilized in Diels-Alder reactions and other cycloadditions to form complex ring systems in research and development.
• Material Science Research: Investigated for use in advanced material applications, including conductive polymers and novel composites.

Basic Information

Product Name	2-Methyl-1-Butene-3-Yne
CAS No.	78-80-8
Molecular Formula	C5H6
Molecular Weight	66.10 g/mol
Synonyms	Isopropenylacetylene; 3-Methyl-1-buten-3-yne; 2-Methylbut-1-en-3-yne; 1-Buten-3-yne, 2-methyl-; 3-Methyl-1-butyne-3-ene; 2-Methyl-1-buten-3-yne; 2-Methyl-3-butene-1-yne
EINECS	201-143-3

Quality Control

Our 2-Methyl-1-Butene-3-Yne is produced and handled under stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets exacting standards for use as a chemical intermediate. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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 and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) to maintain stability and purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	0.715 - 0.725 g/mL
Refractive Index (n20D)	1.420 - 1.430

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