Description

Rac-Ethylenebis(4,5,6,7-Tetrahydro-1-Indenyl)Dimethylzirconium(Iv) is a highly active, single-site metallocene catalyst precursor used in the polymerization of olefins. This compound is critical for producing polymers with highly controlled molecular weight, tacticity, and narrow molecular weight distribution. It is primarily utilized by advanced polymer research laboratories and industrial-scale polyolefin manufacturers seeking to develop specialty plastics and elastomers with tailored properties.

Application

• Catalyst for Polyolefin Production: Serves as a key component in the synthesis of isotactic polypropylene (iPP) and other stereoregular polyolefins.
• Ethylene Polymerization: Used in catalyst systems for the production of linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE).
• Advanced Material Research: Enables the development of novel polymer architectures, including block copolymers and thermoplastic elastomers, in R&D settings.
• Olefin Copolymerization: Facilitates the copolymerization of ethylene with higher α-olefins (e.g., 1-butene, 1-hexene) to create polymers with specific comonomer incorporation.
• Catalyst Screening & Development: A reference compound for evaluating and optimizing new metallocene-based catalyst formulations and activation systems.

Basic Information

Product Name	Rac-Ethylenebis(4,5,6,7-Tetrahydro-1-Indenyl)Dimethylzirconium(Iv)
CAS No.	132881-67-5
Molecular Formula	C₂₂H₂₈Zr
Molecular Weight	383.66 g/mol
Synonyms	Dimethylsilylene-bis(tetrahydroindenyl)zirconium dichloride (rac-isomer); rac-Ethylenebis(tetrahydroindenyl)zirconium dimethyl; rac-Me₂Si(2-Me-4-PhInd)₂ZrCl₂ (related analog); Metallocene Catalyst Precursor; Zirconocene dimethyl derivative; rac-(C₂H₄)(IndH₄)₂ZrMe₂; (rac)-Ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium(IV) dimethyl
EINECS	Contact for details

Quality Control

Our Rac-Ethylenebis(4,5,6,7-Tetrahydro-1-Indenyl)Dimethylzirconium(Iv) is manufactured under strict inert atmosphere conditions to ensure purity and catalytic activity. Each batch undergoes rigorous analytical testing, including NMR spectroscopy and elemental analysis, to confirm identity and composition. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and solvent content is provided with every shipment to guarantee batch-to-batch consistency for your critical polymerization processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) at 2-8°C to maintain stability. This material is both hygroscopic (moisture-sensitive) and easily oxidized; exposure to air, moisture, or elevated temperatures will lead to rapid decomposition and loss of catalytic activity. Handle and open containers only in a certified glovebox or under a continuous inert gas purge.

Specification

Item	Specification
Appearance	Off-white to beige crystalline solid
Identification (NMR)	Conforms to structure
Purity (Assay by NMR)	≥ 95%
Solvent Content (Residual Toluene)	≤ 5% (by ¹H NMR)
Elemental Analysis (Zr)	Within theoretical range

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