Description

Isopropylidene(3-Methylcyclopentadienyl)(9-Fluorenyl)Zirconium Dichloride is a highly specialized metallocene catalyst component, also known as a constrained geometry catalyst (CGC). This compound is valued for its precise molecular architecture, which enables superior control over polymer microstructure and properties in advanced polyolefin synthesis. It is a critical raw material for R&D and production in the polymer industry, particularly for manufacturers of specialty elastomers, plastomers, and high-performance polyolefins.

Application

• Catalyst Component for Polyolefin Polymerization: Serves as a key precatalyst in the production of ethylene/α-olefin copolymers, including linear low-density polyethylene (LLDPE) and polyolefin elastomers (POE).
• Synthesis of Specialty Polymers: Enables the manufacture of polymers with tailored properties such as narrow molecular weight distribution, controlled comonomer incorporation, and specific tacticity.
• Advanced Material Research: Used in R&D laboratories for developing novel polymer architectures, including block copolymers and functionalized polyolefins.
• Production of High-Performance Elastomers: Critical for synthesizing thermoplastic polyolefin elastomers (TPO) and ethylene-propylene-diene monomer (EPDM) rubber with enhanced performance characteristics.
• Catalyst Screening and Optimization: Employed in catalyst discovery programs to study structure-activity relationships and optimize polymerization processes.

Basic Information

Product Name	Isopropylidene(3-Methylcyclopentadienyl)(9-Fluorenyl)Zirconium Dichloride
CAS No.	133190-48-4
Molecular Formula	C23H22Cl2Zr
Molecular Weight	462.52 g/mol
Synonyms	rac-[Dimethylsilylene-bis(3-methylcyclopentadienyl)(9-fluorenyl)]zirconium dichloride; (3-MethylCp)(Flu)ZrCl2; CGC Catalyst; Constrained Geometry Catalyst; rac-Me2Si(3-MeCp)(Flu)ZrCl2; Zirconium, dichloro[1,1'-(1,1-dimethylethylidene)bis(3-methyl-η5-1-cyclopentadienyl)](η5-9H-fluoren-9-yl)-, (SP-4-2)-; rac-Dimethylsilylenebis(3-methylcyclopentadienyl)(9-fluorenyl)zirconium dichloride
EINECS	Contact for details

Quality Control

Every batch of Isopropylidene(3-Methylcyclopentenyl)(9-Fluorenyl)Zirconium Dichloride is synthesized and handled under stringent inert atmosphere conditions to ensure purity and catalytic activity. Our products undergo rigorous quality testing, including spectroscopic analysis and purity assays, to ensure compliance with exacting R&D and process standards. Certificates of Analysis (COA) detailing batch-specific data are available upon request.

Storage

Preserve in a tightly closed container, protected from light. This material is strictly light-sensitive (protect from all light exposure) and hygroscopic (moisture-sensitive). For long-term stability, store under an inert atmosphere (argon or nitrogen) at temperatures between 2°C and 8°C. Allow the sealed container to reach ambient temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Orange to red crystalline solid
Identification (IR)	Conforms to structure
Purity (NMR)	≥ 95%
Solubility	Soluble in toluene, dichloromethane, THF

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