Description

cis-3-Methyl-1,3-pentadiene is a specialized, highly volatile diene compound with the CAS registry number 2787-45-3. This chemical serves as a valuable building block and reactive intermediate in advanced organic synthesis, particularly for constructing complex molecular architectures. It is primarily utilized by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty polymer industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemical Synthesis: Used in the development of novel pesticides, herbicides, and plant growth regulators.
• Specialty Polymer Research: Acts as a monomer or co-monomer in the development of novel elastomers and polymers with specific properties.
• Organic Synthesis: Employed in Diels-Alder reactions and other cycloaddition chemistry to create complex cyclic and polycyclic structures.
• Fragrance & Flavor Chemistry: Serves as a starting material for synthesizing specific terpene-based aroma compounds.
• Material Science R&D: Investigated for creating advanced materials with tailored optical or electronic characteristics.

Basic Information

Product Name	cis-3-Methyl-1,3-pentadiene
CAS No.	2787-45-3
Molecular Formula	C6H10
Molecular Weight	82.14 g/mol
Synonyms	(Z)-3-Methyl-1,3-pentadiene; (3Z)-3-Methylpenta-1,3-diene; 3-Methyl-cis-1,3-pentadiene; 1,3-Pentadiene, 3-methyl-, (Z)-; 3-Methyl-1,3-pentadiene, cis-; (Z)-3-Methylpenta-1,3-diene; cis-3-Methylpenta-1,3-diene
EINECS	220-514-8

Quality Control

Our cis-3-Methyl-1,3-pentadiene is produced and handled under strict quality management protocols. Every batch undergoes comprehensive analytical testing, including GC and GC-MS analysis, to ensure high purity and consistent performance as a synthesis intermediate. 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 sources and ignition points. Due to its highly volatile nature, containers should be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use to prevent polymerization or degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0% (Area %)
Isomeric Purity (cis-isomer)	≥ 90.0%
Water Content (KF)	≤ 0.1%

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