Description

4-Methyl-2-Pentyne is a versatile alkyne compound with the CAS registry number 21020-27-9. It serves as a valuable intermediate in organic synthesis, particularly for constructing complex molecular frameworks. This highly volatile building block is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Agrochemical Synthesis: Acts as a key precursor in the production of advanced pesticides and herbicides.
• Organic Synthesis Building Block: Employed in cross-coupling reactions, cycloadditions, and other transformations to introduce alkyne functionality.
• Material Science Research: Utilized in the development of novel polymers, ligands, and advanced organic materials.
• Fine Chemical Production: Serves as a starting material for flavors, fragrances, and other high-value specialty chemicals.
• Academic & Industrial R&D: A critical reagent for methodological development and exploratory chemistry in research laboratories.

Basic Information

Product Name	4-Methyl-2-Pentyne
CAS No.	21020-27-9
Molecular Formula	C6H10
Molecular Weight	82.14 g/mol
Synonyms	Isohex-2-yne; 2-Methyl-3-butyne; 4-Methylpent-2-yne; 2-Pentyne, 4-methyl-; Isobutylacetylene; 2-Methyl-3-butyn; 4-Methyl-2-pentyn
EINECS	244-155-4

Quality Control

Our 4-Methyl-2-Pentyne is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including GC and NMR analysis, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its highly volatile nature, containers must be kept tightly sealed and under an inert atmosphere when not in use to prevent evaporation and degradation. Recommended storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	0.71 - 0.73 g/mL
Boiling Point	Approx. 60-62°C

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