Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride
Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride (CAS 54039-38-2), with the molecular formula C20H30Cl2Zr and a molecular weight of 432.58, is a valuable organometallic compound. It is primarily utilised as a precursor or catalyst in various chemical synthesis applications, particularly in organometallic chemistry and catalysis. Its specific structure lends itself to specialised reactions, making it a key component for researchers and industrial chemists.
- IUPAC
- Decamethylzirconocene dichloride
- Synonyms
- Decamethylzirconocene dichloride

Catalyst Precursor
This zirconium compound serves as an effective precursor for catalysts used in organic transformations. Its organometallic nature allows for controlled reactivity in polymerisation and other catalytic cycles.
Organometallic Synthesis
It is employed as a building block in the synthesis of more complex organozirconium compounds. These derivatives often find applications in materials science and advanced chemical research.
Inorganic Chemistry Research
Used in fundamental inorganic chemistry studies, exploring the coordination chemistry and reactivity of zirconium complexes. Its well-defined structure aids in understanding reaction mechanisms.
| Molecular weight | 432.58 |
|---|---|
| Empirical formula | C20H30Cl2Zr |
| Assay | 97% |
| Melting point | >300 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride used for?
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Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride is used as a precursor in catalysis, for organometallic synthesis, and in inorganic chemistry research.
What is the CAS number and formula for Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride?
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The CAS number is 54039-38-2 and the molecular formula is C20H30Cl2Zr.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride with an assay of 97%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
How should Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride be handled safely?
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This compound is dangerous and causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection (type N100 or P3), must be worn. Handle in a well-ventilated area, and in case of contact, follow emergency procedures.
How is Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride packed and shipped?
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This chemical is typically packed according to UN 3261 8 / PGII regulations for safe transport. Tech Serve Solutions exports globally, adhering to all relevant shipping and handling standards.
How can I request a sample or quote for Bis(pentamethylcyclopentadienyl)zirconium(IV) dichloride?
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To request a sample or a quote, please contact our sales team through the website or by phone, providing the product name and CAS number.
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