Cyclopentadienylmolybdenum(V) tetrachloride
Cyclopentadienylmolybdenum(V) tetrachloride (CAS 62927-99-5) is a molybdenum-containing organometallic compound with the formula C5H5Cl4Mo. It is primarily utilised as a catalyst in chemical synthesis, particularly for the polymerization of substituted acetylenes. This compound also serves as a reactant in specific chemical transformations, such as reactions with bismuth alkoxides, making it valuable in inorganic chemistry and advanced materials research.
- IUPAC
- Tetrachloro(η5-2,4-cyclopentadien-1-yl)molybdenum
- Synonyms
- Tetrachloro(η5-2,4-cyclopentadien-1-yl)molybdenum

Polymerization Catalyst
Acts as a catalyst for the polymerization of substituted acetylenes, enabling the synthesis of specialized polymers.
Reactant in Organometallic Synthesis
Utilized as a reactant in reactions with bismuth alkoxides, contributing to the formation of novel inorganic compounds.
| Molecular weight | 302.85 |
|---|---|
| Empirical formula | C5H5Cl4Mo |
| Assay | 95% |
| Application | Catalyst for polymerization of substituted acetylenes1Reactant for reaction with bismuth alkoxides2 |
| Melting point | 245-249 °C (dec.) |

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
| 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 Cyclopentadienylmolybdenum(V) tetrachloride used for?
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It is used as a catalyst for the polymerization of substituted acetylenes and as a reactant for reactions with bismuth alkoxides.
What is the CAS number and formula for Cyclopentadienylmolybdenum(V) tetrachloride?
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The CAS number is 62927-99-5 and the molecular formula is C5H5Cl4Mo.
What is the grade and purity of Cyclopentadienylmolybdenum(V) tetrachloride?
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This product is typically supplied at an assay of 95% purity.
What are the primary hazards associated with Cyclopentadienylmolybdenum(V) tetrachloride?
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This compound is classified as Danger, causing severe skin burns and eye damage (H314). Appropriate personal protective equipment and handling procedures are essential.
How is Cyclopentadienylmolybdenum(V) tetrachloride packed and shipped?
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It is shipped as a corrosive solid (UN 3261, Class 8, Packing Group II), requiring specialised packaging and transport protocols.
How can I request a quote for Cyclopentadienylmolybdenum(V) tetrachloride?
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Please contact our sales department or use the online enquiry form to request a quote for this chemical.
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