Description

3-Methyl-2,5-Hexadiene is a branched-chain diene with the CAS number 761-76-2, valued for its reactivity and utility as a versatile chemical intermediate. Its conjugated diene structure makes it a key building block in organic synthesis, particularly for Diels-Alder reactions and polymer modifications. This compound is essential for R&D chemists and process engineers in the fine chemical, pharmaceutical, and specialty polymer industries seeking to create novel molecular architectures.

Application

• As a dienophile in Diels-Alder cycloaddition reactions for the synthesis of complex cyclic and polycyclic compounds.
• As a reactive monomer or co-monomer in the production of specialty polymers and elastomers with tailored properties.
• As a key intermediate in pharmaceutical research for developing active pharmaceutical ingredients (APIs) and novel drug candidates.
• As a building block for agrochemicals, including the synthesis of pesticides and herbicides.
• In fragrance and flavor chemistry as a precursor for specific terpene-like odorants.
• For material science research, particularly in creating advanced organic materials and functional coatings.
• As a standard or reference material in analytical laboratories for chromatography and spectroscopy.

Basic Information

Product Name	3-Methyl-2,5-Hexadiene
CAS No.	761-76-2
Molecular Formula	C7H12
Molecular Weight	96.17 g/mol
Synonyms	3-Methylhexa-2,5-diene; 2,5-Hexadiene, 3-methyl-; 3-Methyl-2,5-hexadiene; 2-Methyl-1,4-pentadiene (tautomer); 3-Methyl-δ2,5-hexadiene; NSC 66499; 1,1-Dimethyl-1,3-butadiene (common name)
EINECS	212-093-9

Quality Control

Our 3-Methyl-2,5-Hexadiene is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We are committed to meeting the stringent requirements of research and industrial applications.

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, keep container tightly sealed when not in use. Recommended storage temperature is 2-8°C (refrigerated) for long-term stability. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.430 - 1.440
Density (20°C)	0.72 - 0.75 g/mL

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