Diironnonacarbonyl
Diiron nonacarbonyl (CAS: 15321-51-4, Fe2(CO)9) is an organoiron compound featuring a direct iron-iron bond. It serves as a valuable precursor and reagent in inorganic chemistry and organometallic synthesis. This compound is particularly noted for its applications in homogeneous catalysis, often used to generate active iron catalysts for various organic transformations. It is supplied by TSS with an assay of ≥97.0% iron content.
- IUPAC
- Enneacarbonyldiiron,Iron enneacarbonyl,Nonacarbonyldiiron
- Synonyms
- EnneacarbonyldiironIron enneacarbonylNonacarbonyldiiron

Homogeneous Catalysis
Diiron nonacarbonyl is a key precursor for generating catalytically active iron species. It finds use in transformations such as hydroformylation, hydrogenation, and carbonylation reactions, offering an alternative to precious metal catalysts.
Organometallic Synthesis
As a source of iron, it is employed in the synthesis of more complex organometallic compounds and clusters. Its structure with an Fe-Fe bond makes it a unique building block in coordination chemistry.
Chemical Reagent
It functions as a reagent in various organic synthesis protocols. The controlled release of carbon monoxide and reactive iron species allows for specific chemical modifications.
| Molecular weight | 363.78 |
|---|---|
| Linear formula | Fe2(CO)9 |
| Assay | ≥97.0% (Fe) |
| Storage temperature | 2-8°C |


Hazard statements
- H228Flammable solid
- H301Toxic if swallowed
- H331Toxic if inhaled
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P301IF SWALLOWED
- P311Call 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 2930 6.1/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,T |
| Risk statements (R) | 11-23/25 |
| Safety statements (S) | 16-28-36/37/39-45 |
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 Diiron nonacarbonyl used for?
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Diiron nonacarbonyl (CAS: 15321-51-4) is primarily used as a precursor in homogeneous catalysis and for the synthesis of organometallic compounds. It serves as a reagent in various organic transformations.
What are the CAS number and chemical formula for Diiron nonacarbonyl?
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The CAS number for Diiron nonacarbonyl is 15321-51-4, and its chemical formula is Fe2(CO)9.
What grade and purity does Tech Serve Solutions supply for Diiron nonacarbonyl?
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Tech Serve Solutions supplies Diiron nonacarbonyl with an assay of ≥97.0% iron content. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Diiron nonacarbonyl be handled and stored?
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Diiron nonacarbonyl is flammable and toxic. Handle with appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator. Store refrigerated at 2-8°C in a well-ventilated place, away from heat and ignition sources.
Is Diiron nonacarbonyl a controlled substance?
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The provided data does not indicate that Diiron nonacarbonyl is a controlled substance. However, it is classified as highly flammable and toxic.
How is Diiron nonacarbonyl packed and shipped?
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Diiron nonacarbonyl is packed according to UN 2930 specifications for transport of dangerous goods. TSS ensures compliant packing and export procedures for this hazardous material.
How can I request a quote or sample of Diiron nonacarbonyl?
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To request a quote or sample of Diiron nonacarbonyl, please contact the TSS sales team via our website or the provided contact details, specifying the product name and CAS number.
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