Description

Dimethylsilanediyl(9-Fluorenyl)(Cyclopentadienyl)Zirconium Dichloride is a highly specialized metallocene catalyst precursor, also known as a constrained geometry catalyst (CGC). This compound matters for its exceptional ability to produce polyolefins with precisely controlled molecular weight, tacticity, and comonomer incorporation. It is essential for advanced polymer R&D and production, particularly for manufacturers of specialty elastomers, plastomers, and high-performance polyethylene and polypropylene grades.

Application

• Primary catalyst component for the solution-phase polymerization of ethylene and α-olefins.
• Production of ethylene-propylene-diene monomer (EPDM) elastomers with superior properties.
• Synthesis of linear low-density polyethylene (LLDPE) and plastomers with narrow molecular weight distribution.
• Manufacturing of polyolefin block copolymers and other advanced polymer architectures.
• Catalyst research and development for single-site catalysis in academic and industrial laboratories.
• Key material in the development of high-performance polyolefin materials for automotive, wire & cable, and packaging applications.

Basic Information

Product Name	Dimethylsilanediyl(9-Fluorenyl)(Cyclopentadienyl)Zirconium Dichloride
CAS No.	161994-85-0
Molecular Formula	C20H20Cl2SiZr
Molecular Weight	452.58 g/mol
Synonyms	Dimethylsilylene(9-fluorenyl)(cyclopentadienyl)zirconium dichloride; (tert-Butylamido)dimethyl(η5-cyclopentadienyl)silane Zirconium Dichloride (related CGC); CGC Zirconium Catalyst; Constrained Geometry Catalyst (CGC) Precursor; [Dimethylsilyl(9-fluorenyl)(cyclopentadienyl)]zirconium dichloride; (Fluorenyl)(cyclopentadienyl)zirconium dichloride dimethylsilane bridged; Dow CGC Catalyst Type; Zirconium, dichloro[dimethylsilylene(η5-9H-fluoren-9-yl)(η5-2,4-cyclopentadien-1-yl)]-, (SP-4-2)-
EINECS	Contact for details

Quality Control

Our Dimethylsilanediyl(9-Fluorenyl)(Cyclopentadienyl)Zirconium Dichloride is manufactured under stringent conditions to ensure batch-to-batch consistency and high catalytic activity. Each lot undergoes rigorous quality testing, including NMR and elemental analysis, to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and R&D processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) in a cool, dry place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be handled in a moisture-free environment to prevent decomposition and loss of catalytic activity.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (NMR)	Conforms to structure
Purity (NMR / Elemental Analysis)	≥ 95%
Zirconium (Zr) Content	Contact for details
Chloride (Cl) Content	Contact for details

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