Description

Rac-Dimethylsilylbis-(4-tert-Butyl-2-Methylcyclopentadienyl)Zirconium(Iv)Dimethyl is a highly specialized metallocene catalyst precursor essential for advanced polyolefin synthesis. This compound is valued for its ability to impart precise stereochemical control and tailored polymer properties in catalytic polymerization processes. It is a critical raw material for R&D and production in the specialty plastics, advanced materials, and catalyst manufacturing sectors.

Application

• Catalyst Component for Polyolefin Production: Serves as a key precursor for single-site catalysts used in the synthesis of polyethylene (PE) and polypropylene (PP) with specific tacticity and molecular weight distributions.
• Advanced Material Research: Utilized in R&D laboratories for developing novel polymers with enhanced mechanical, thermal, or optical properties.
• Specialty Elastomer Synthesis: Employed in the catalysis for producing ethylene-propylene-diene monomer (EPDM) and other elastomers.
• Catalyst Ligand Synthesis: Acts as an intermediate or ligand source for the preparation of other organometallic catalysts.
• Olefin Polymerization Studies: Used in academic and industrial research to study polymerization mechanisms and kinetics.
• High-Performance Film & Fiber Grades: Enables the production of polymers designed for high-clarity films, high-strength fibers, and other demanding applications.

Basic Information

Item	Detail
Product Name	Rac-Dimethylsilylbis-(4-tert-Butyl-2-Methylcyclopentadienyl)Zirconium(Iv)Dimethyl
CAS No.	261526-72-1
Molecular Formula	C30H46SiZr
Molecular Weight	525.99 g/mol
Synonyms	Dimethylsilyl-bis(4-tert-butyl-2-methyl-1-cyclopentadienyl)zirconium dimethyl; rac-[Dimethylsilylenebis(4-tert-butyl-2-methyl-1-cyclopentadienyl)]zirconium(IV) dimethyl; rac-Me2Si(4-tBu-2-MeCp)2ZrMe2; Metallocene Zirconium Catalyst Precursor; (rac)-Dimethylsilylbis(4-tert-butyl-2-methylcyclopentadienyl)zirconium dimethyl
EINECS	Contact for details

Quality Control

Our production of Rac-Dimethylsilylbis-(4-tert-Butyl-2-Methylcyclopentadienyl)Zirconium(Iv)Dimethyl adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical characterization, including NMR and elemental analysis, to verify identity and purity. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) at temperatures between 2°C and 8°C to maintain stability. This material is both hygroscopic (moisture-sensitive) and easily oxidized; therefore, containers must be kept sealed and handled in a controlled, dry environment.

Specification

Item	Specification
Appearance	Yellow to orange crystalline solid or powder
Identification (NMR)	Conforms to structure
Purity (NMR / HPLC)	≥ 95%
Zirconium Content	Contact for details
Solubility	Soluble in common organic solvents (toluene, hexane)

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