Bis(cyclopentadienyl)tungsten(IV) chloride hydride
Bis(cyclopentadienyl)tungsten(IV) chloride hydride (CAS 51177-12-9; formula C10H11ClW; molar mass 350.49 g/mol) is an organometallic tungstenocene complex, Cp2W(H)Cl, bearing two cyclopentadienyl rings with hydride and chloride ligands on a tungsten(IV) centre. Supplied as an air- and moisture-sensitive solid melting around 195 °C with decomposition, it is used chiefly as a specialist reagent and precursor in organometallic synthesis and catalysis research. Tech Serve Solutions supplies it to laboratories and manufacturers worldwide.
- Synonyms
- Bis(cyclopentadienyl)tungsten(IV) chloride hydrideChlorohydridobis(cyclopentadienyl)tungsten(IV)ChlorohydridotungstenoceneTungstenocene chloride hydrideCp2W(H)ClHydridochlorobis(cyclopentadienyl)tungstenCAS 51177-12-9
Organometallic synthesis precursor
Serves as a defined tungsten(IV) building block for preparing further tungstenocene derivatives, where the reactive hydride and chloride ligands offer convenient handles for ligand exchange and functionalisation.
Catalysis and coordination chemistry research
Used in academic and industrial laboratories investigating tungsten-based catalysis, metal-hydride reactivity and structure-activity relationships of bent metallocene systems.
Reference and study compound
Employed as a well-characterised tungsten metallocene for method development, spectroscopic study and as a comparator in organometallic and inorganic chemistry programmes.
Material and inorganic chemistry exploration
Investigated as a molecular tungsten source in inorganic and materials chemistry, where its tungsten(IV) core and cyclopentadienyl framework are of interest for downstream chemistry.
| Molecular weight | 350.49 |
|---|---|
| Empirical formula | C10H11ClW |
| Melting point | 195 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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(cyclopentadienyl)tungsten(IV) chloride hydride used for?
+
It is used primarily as a specialist reagent and precursor in organometallic synthesis and catalysis research. The tungstenocene complex Cp2W(H)Cl provides a defined tungsten(IV) centre with reactive hydride and chloride ligands for preparing related complexes and studying metal-hydride chemistry. Applications are predominantly within research and chemical-synthesis laboratories rather than bulk industrial use.
What is the CAS number and molecular formula of Bis(cyclopentadienyl)tungsten(IV) chloride hydride?
+
The CAS number is 51177-12-9 and the molecular formula is C10H11ClW (Hill notation), corresponding to the tungstenocene chloride hydride Cp2W(H)Cl. Its molecular weight is 350.49 g/mol and the MDL number is MFCD04126435.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this compound as a research and technical-grade organometallic material suitable for laboratory and synthesis use. The specific assay and grade are confirmed on the certificate of analysis accompanying each batch. We do not represent it as a USP, BP or EP pharmacopoeial grade. Please share your purity requirement with your enquiry and we will confirm availability against your specification.
What are the safety and handling requirements?
+
Handle as an air- and moisture-sensitive organometallic that melts with decomposition near 195 °C. Recommended personal protective equipment includes eye shields, gloves and an N95 (US) or P1 (EN 143) respirator filter. It is classified Water Hazard Class 3 (WGK 3, severely hazardous to water) in Germany, so prevent any release to drains, soil or water. Work under inert, dry conditions and consult the Safety Data Sheet before use.
How is Bis(cyclopentadienyl)tungsten(IV) chloride hydride packed, shipped and exported?
+
It is packed in tightly sealed, inert containers appropriate to an air- and moisture-sensitive solid, in laboratory to commercial quantities, with full labelling and documentation. As a specialist global supplier and exporter since 1998, Tech Serve Solutions arranges compliant international shipping with the relevant Safety Data Sheet and certificate of analysis. Transport classification is confirmed at the time of order.
How do I request a sample or quote?
+
Contact Tech Serve Solutions with the product name, CAS number 51177-12-9, the quantity and purity you require, and your delivery destination. We will confirm current availability, packaging, lead time and export documentation, and provide a quotation tailored to your specification.
▶ Related products
Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis