Description

Cyclopentene, 1,4-Dimethyl-3,5-Bis(Methylene)-2-(1-Methylethyl)- (9Ci) is a specialized, multi-substituted cyclopentene derivative with a complex molecular architecture, identified by CAS number 147090-72-0. This compound serves as a high-value chemical intermediate for advanced organic synthesis, offering unique steric and electronic properties due to its dimethyl, bis(methylene), and isopropyl substituents. It is primarily utilized by R&D chemists and process development teams in the pharmaceutical, agrochemical, and advanced materials sectors for constructing complex molecular frameworks.

Application

This functionalized cyclopentene is engineered for sophisticated chemical transformations. Key application areas include:

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs) and complex natural product analogs.
• Agrochemical Synthesis: Used in the research and development of new generation herbicides, fungicides, and plant growth regulators.
• Advanced Material Precursor: Acts as a monomer or cross-linking agent in the development of specialty polymers, resins, and functional materials.
• Organic Synthesis & Catalysis: Employed in Diels-Alder reactions, ring-opening metathesis polymerizations (ROMP), and other cycloaddition processes to create complex polycyclic structures.
• Flavor & Fragrance Chemistry: Potential use as an intermediate for synthesizing unique terpenoid-based aroma molecules.
• Academic & Industrial R&D: A valuable reagent for methodological studies in synthetic organic chemistry and catalysis research.

Basic Information

Product Name	Cyclopentene, 1,4-Dimethyl-3,5-Bis(Methylene)-2-(1-Methylethyl)- (9Ci)
CAS No.	147090-72-0
Molecular Formula	C12H18
Molecular Weight	162.27 g/mol
Synonyms	1,4-Dimethyl-3,5-bis(methylene)-2-(1-methylethyl)cyclopentene; 2-Isopropyl-1,4-dimethyl-3,5-bis(methylene)cyclopentene; 3,5-Bis(methylene)-2-isopropyl-1,4-dimethylcyclopentene; 1,4-Dimethyl-3,5-dimethylene-2-isopropylcyclopentene; (9CI) Cyclopentene derivative; Substituted Dimethylenecyclopentene; Technical grade name: Contact for details
EINECS	Contact for details

Quality Control

Our production of Cyclopentene, 1,4-Dimethyl-3,5-Bis(Methylene)-2-(1-Methylethyl)- (9Ci) adheres to a stringent quality management system. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance as a synthesis intermediate. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its property of being easily oxidized, this material should be stored under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Report and comply with agreed limits

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