Benzeneruthenium(II) chloride dimer
Benzeneruthenium(II) chloride dimer (CAS 37366-09-9; formula Ru2(C6H6)2Cl4; molar mass 500.18 g/mol) is an organometallic ruthenium(II) arene complex supplied as a fine solid for research and synthesis. A versatile half-sandwich precursor, it is widely used to prepare other ruthenium catalysts and as a precatalyst in homogeneous catalysis, including hydrosilylation and hydrogenation chemistry. Tech Serve Solutions supplies it worldwide to laboratory, academic and fine-chemical customers.
- IUPAC
- (Benzene)dichlororuthenium dimer,Benzeneruthenium dichloride dimer,Bis(benzene)tetrachlorodiruthenium,Bis[(benzene)dichlororuthenium],Dibenzenetetrachlorodiruthenium
- Synonyms
- Benzeneruthenium(II) chloride dimer(Benzene)dichlororuthenium dimerBenzeneruthenium dichloride dimerBis(benzene)tetrachlorodirutheniumBis[(benzene)dichlororuthenium]DibenzenetetrachlorodirutheniumDichloro(benzene)ruthenium(II) dimer

Ruthenium catalyst precursor
Serves as a convenient half-sandwich precursor for the preparation of a wide range of ruthenium(II) arene catalysts and complexes. The chloride-bridged dimer is readily cleaved by donor ligands to generate active catalytic species.
Hydrosilylation catalysis
Used as a catalyst in hydrosilylation chemistry, mediating the addition of Si-H bonds across unsaturated substrates. It is valued in this role as a ruthenium-based alternative within organometallic synthesis.
Hydrogenation precatalyst
Acts as a precatalyst for the hydrogenation of beta-keto esters and related substrates, typically in combination with suitable chiral or achiral ligands to form the working catalyst in situ.
C-N bond formation
Reported as a catalyst for nucleophilic aromatic substitution (SNAr) reactions of fluoroarenes with cyclic amines, supporting the construction of arylamine motifs.
Research and method development
Employed in academic and industrial laboratories for catalyst screening, ligand studies and methodology development in homogeneous and organometallic catalysis.
| Molecular weight | 500.18 |
|---|---|
| Linear formula | Ru2(C6H6)2Cl4 |
| Application | Hydrosilylation Catalysts• Catalyst for SNAr reactions of fluoroarenes and cyclic amines1 (eq. 1)• Precatalyst for the hydrogenation of β-keto esters2 (eq. 2)• Precursor for the preparation of other ruthenium catalysts3 (eq. 3) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 Benzeneruthenium(II) chloride dimer used for?
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It is used chiefly as a precursor for preparing other ruthenium(II) arene catalysts and as a precatalyst in homogeneous catalysis. Documented uses include hydrosilylation, the hydrogenation of beta-keto esters, and catalysing SNAr reactions of fluoroarenes with cyclic amines. It is intended for research and chemical synthesis.
What is the CAS number and molecular formula of Benzeneruthenium(II) chloride dimer?
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The CAS number is 37366-09-9 and the molecular formula is Ru2(C6H6)2Cl4. The molecular weight is 500.18 g/mol and the MDL number is MFCD00064686.
What grade and purity does Tech Serve Solutions supply?
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We supply Benzeneruthenium(II) chloride dimer as a research and reagent-grade organometallic compound suitable for synthesis and catalysis. Specific assay and lot data are confirmed on the certificate of analysis for each batch. We do not represent this material as USP, BP or EP pharmacopoeia grade.
What are the safety and handling requirements?
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It is classified GHS07, signal word Warning, with hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation) and H335 (may cause respiratory irritation). Avoid dust formation and breathing dust; wear gloves, eye protection and an N95-type dust mask. If in eyes, rinse cautiously with water for several minutes (P305 + P351 + P338). Consult the full Safety Data Sheet before use. The German water-hazard class is WGK 3.
Is Benzeneruthenium(II) chloride dimer a controlled or scheduled substance?
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No drug-control or scheduled-substance restriction is indicated in our product data for this compound. As with all chemicals, customers should confirm import, export and local regulatory requirements in their own jurisdiction before ordering.
How is Benzeneruthenium(II) chloride dimer packed, shipped and exported?
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It is supplied in appropriately sealed laboratory and bulk packaging sized to the order, with full labelling and a Safety Data Sheet. As a specialist global supplier and exporter since 1998, Tech Serve Solutions arranges compliant international documentation and dispatch to most destinations.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, grade and delivery destination, and our team will respond with availability, lead time and a formal quotation. Sample requests for evaluation can be accommodated subject to availability.
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