cis-Dichlorobis(dimethyl sulfoxide)platinum(II)
cis-Dichlorobis(dimethyl sulfoxide)platinum(II) (CAS: 22840-91-1; C4H12Cl2O2PtS2; MW: 422.25) is a platinum(II) coordination complex. It serves as a valuable precursor and reagent in various chemical synthesis applications. Its structure, featuring platinum coordinated to chloride and dimethyl sulfoxide ligands, lends itself to specific catalytic and organometallic transformations, making it a useful compound for advanced research and development in inorganic and materials chemistry.
- IUPAC
- cis-Dichlorobis(dimethylsulfoxido)platinum(II),Pt(DMSO)2Cl2
- Synonyms
- cis-Dichlorobis(dimethylsulfoxido)platinum(II), Pt(DMSO)2Cl2

Catalysis and Inorganic Chemistry
This platinum complex is employed as a catalyst or pre-catalyst in various organic transformations. Its well-defined coordination sphere allows for specific reactivity pathways in inorganic synthesis and the preparation of novel platinum-containing materials.
Chemical Synthesis
Used as a building block in the synthesis of more complex organometallic compounds and coordination polymers. The platinum centre offers opportunities for diverse chemical modifications and complex formation.
Research and Development
A valuable reagent for academic and industrial research laboratories investigating platinum chemistry, medicinal inorganic chemistry, and materials science. Its properties make it suitable for exploring new reaction mechanisms and developing novel platinum-based functional materials.
| Molecular weight | 422.25 |
|---|---|
| Empirical formula | C4H12Cl2O2PtS2 |
| Assay | 97% |
| Melting point | 218-224 °C |

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
| 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 cis-Dichlorobis(dimethyl sulfoxide)platinum(II) used for?
+
This platinum complex is primarily used in catalysis and inorganic chemistry, and for general chemical synthesis, serving as a precursor in research and development.
What is the CAS number and formula for cis-Dichlorobis(dimethyl sulfoxide)platinum(II)?
+
The CAS number is 22840-91-1, and the empirical formula is C4H12Cl2O2PtS2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies cis-Dichlorobis(dimethyl sulfoxide)platinum(II) at a minimum purity of 97% (Assay). This product is not graded as USP, BP, or EP, and TSS does not represent it as such.
How should cis-Dichlorobis(dimethyl sulfoxide)platinum(II) be handled?
+
Handle with care. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Ensure good ventilation and wear appropriate personal protective equipment, including gloves, eye protection, and respiratory protection (P261, P305 + P351 + P338).
How is cis-Dichlorobis(dimethyl sulfoxide)platinum(II) packed and shipped?
+
Products are carefully packed and securely sealed for shipment, adhering to all relevant regulations for chemical export and transportation. Please contact us for specific shipping and export details.
How can I request a sample or quote for cis-Dichlorobis(dimethyl sulfoxide)platinum(II)?
+
To request a sample or a quote, please use the contact form on our website or email our sales department, providing the product name and CAS number (22840-91-1).
▶ 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