Tricarbonyl(cycloheptatriene)chromium(0)
Tricarbonyl(cycloheptatriene)chromium(0), CAS 12125-72-3, with the molecular formula C10H8CrO3 and a molecular weight of 228.16 g/mol, is an organometallic compound. It serves as a valuable reagent and catalyst in various chemical synthesis applications. Its structure, featuring a chromium atom coordinated to a cycloheptatriene ligand and three carbonyl groups, enables unique reactivity.

Catalyst in Organic Synthesis
This compound acts as a catalyst in various organic transformations, facilitating reactions such as cycloadditions and rearrangements. Its organometallic nature allows for specific activation of substrates.
Precursor for Organometallic Complexes
It can serve as a starting material for the synthesis of more complex organometallic structures. The labile carbonyl ligands can be substituted to introduce new functionalities.
Ligand Transfer Agent
The cycloheptatriene ligand can be transferred to other metal centres, enabling the formation of novel coordination compounds with potential applications in materials science.
| Molecular weight | 228.16 |
|---|---|
| Empirical formula | C10H8CrO3 |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-36 |
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 Tricarbonyl(cycloheptatriene)chromium(0) used for?
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Tricarbonyl(cycloheptatriene)chromium(0) is used as a catalyst in organic synthesis and as a precursor for preparing other organometallic complexes.
What is the CAS number and formula for Tricarbonyl(cycloheptatriene)chromium(0)?
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The CAS number is 12125-72-3 and the empirical formula is C10H8CrO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and development purposes. The specific assay and purity will be detailed on the Certificate of Analysis provided with the product. We do not represent this product as USP, BP, or EP grade.
How should Tricarbonyl(cycloheptatriene)chromium(0) be handled?
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Handle with appropriate personal protective equipment including a dust mask (type N95 or equivalent), eyeshields, and gloves. Avoid breathing dust/fume/gas/mist/vapours/spray. It is harmful if swallowed, in contact with skin, or if inhaled, and causes skin and serious eye irritation.
Is Tricarbonyl(cycloheptatriene)chromium(0) shipped internationally?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Tricarbonyl(cycloheptatriene)chromium(0), and can facilitate international shipments.
How can I request a sample or quote for Tricarbonyl(cycloheptatriene)chromium(0)?
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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 (12125-72-3).
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