Description

5-(1,3-Dimethylbutylidene)-1,3-Cyclopentadiene is a specialized, reactive diene derivative of cyclopentadiene. This compound matters as a versatile chemical intermediate, prized for its unique reactivity in Diels-Alder and other cycloaddition reactions, enabling the synthesis of complex molecular frameworks. It is needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and advanced materials sectors for constructing novel compounds and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex active pharmaceutical ingredients (APIs) and drug candidates via cycloaddition chemistry.
• Agrochemical Synthesis: Used in the research and production of novel pesticides, herbicides, and plant growth regulators.
• Advanced Material Precursor: Serves as a monomer or cross-linking agent in the development of specialty polymers, resins, and functional materials.
• Organic Synthesis & Research: A valuable reagent in academic and industrial laboratories for constructing polycyclic and strained ring systems.
• Fine Chemical Manufacturing: Employed in the production of high-value specialty chemicals, including flavors, fragrances, and dyes.
• Catalyst Ligand Synthesis: Used as a precursor for creating novel ligand systems in organometallic chemistry and catalysis.

Basic Information

Product Name	5-(1,3-Dimethylbutylidene)-1,3-Cyclopentadiene
CAS No.	7338-49-0
Molecular Formula	C11H16
Molecular Weight	148.25 g/mol
Synonyms	1,3-Cyclopentadiene, 5-(1,3-dimethylbutylidene)-; 5-(1,3-Dimethylbutylidene)cyclopentadiene; 1,3-Dimethylbutylidenecyclopentadiene; 5-(1,3-Dimethylbutylidene)-1,3-cyclopentadiene; 5-(1,3-Dimethylbutylidene)cyclopenta-1,3-diene; 5-(4-Methylpent-2-ylidene)cyclopenta-1,3-diene
EINECS	Contact for details

Quality Control

Our 5-(1,3-Dimethylbutylidene)-1,3-Cyclopentadiene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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