Description

1,3-Cyclopentadiene, 5,5-Dimethyl- is a specialized, highly reactive diene derivative of cyclopentadiene, characterized by its geminal dimethyl substitution. This structural modification enhances its stability and reactivity profile, making it a valuable building block for advanced organic synthesis. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for the development of novel compounds and materials.

Application

• Pharmaceutical Intermediates: Serves as a key precursor in the synthesis of complex, biologically active molecules and potential drug candidates.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Diels-Alder Reactions: Acts as a versatile diene component in cycloaddition reactions to construct complex polycyclic frameworks.
• Ligand and Catalyst Development: Employed in the creation of novel organometallic complexes and catalytic systems.
• Polymer and Material Science: Utilized as a monomer or cross-linking agent for developing specialty polymers with unique properties.
• Fine Chemical Production: Integral to the multistep synthesis of high-value, low-volume specialty chemicals.

Basic Information

Product Name	1,3-Cyclopentadiene, 5,5-Dimethyl-
CAS No.	4125-18-2
Molecular Formula	C7H10
Molecular Weight	94.15 g/mol
Synonyms	5,5-Dimethyl-1,3-cyclopentadiene; 5,5-Dimethylcyclopenta-1,3-diene; 5,5-Dimethylcyclopentadiene; Dimethylcyclopentadiene; NSC 66499
EINECS	223-931-8

Quality Control

Our 1,3-Cyclopentadiene, 5,5-Dimethyl- is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and purity assays, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Due to its highly volatile and easily oxidized nature, minimize exposure to air and handle containers with care to prevent pressure build-up.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 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.