Dysprosium(II) iodide
Dysprosium(II) iodide (DyI2), CAS 36377-94-3, is an inorganic compound with a molecular weight of 416.31 g/mol. This anhydrous powder is primarily recognised for its catalytic applications, particularly in organic synthesis. It plays a role in promoting reactions such as the cyclotrimerization of alkynes to form substituted benzenes. Dysprosium(II) iodide is supplied by Tech Serve Solutions for research and industrial applications requiring high-purity inorganic materials.

Catalysis in Organic Synthesis
Dysprosium(II) iodide serves as a catalyst in organic reactions. It is specifically noted for its ability to generate trichlorosilyl radicals from SiCl 4 . This radical generation facilitates the cyclotrimerization of alkynes, leading to the formation of substituted benzene derivatives.
Material Science Research
As a dysprosium salt, DyI 2 is valuable in materials science research. Its properties can be explored for developing new materials with unique electronic or magnetic characteristics, building upon the known applications of rare-earth metal compounds.
Inorganic Chemistry
This compound is a subject of study within inorganic chemistry, contributing to the understanding of lanthanide halide chemistry. Its specific oxidation state and bonding contribute to its reactivity and potential applications in synthesis and materials.
| Molecular weight | 416.31 |
|---|---|
| Linear formula | DyI2 |
| Assay | ≥99.9% trace metals basis |
| Grade | anhydrous |
| Form | powder |
| Application | Used to generate trichlorosilyl radicals from SiCl4 promoting the cyclotrimerization of alkynes to substituted benzenes.1 |

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) | 26-36 |
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 Dysprosium(II) iodide used for?
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Dysprosium(II) iodide is used in organic synthesis, particularly for generating trichlorosilyl radicals that promote the cyclotrimerization of alkynes to substituted benzenes. It is also used in materials science and inorganic chemistry research.
What is the CAS number and chemical formula for Dysprosium(II) iodide?
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The CAS number for Dysprosium(II) iodide is 36377-94-3, and its chemical formula is DyI 2 .
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Dysprosium(II) iodide in anhydrous form with a purity of ≥99.9% trace metals basis. We do not represent this product as USP, BP, or EP grade.
What are the safety concerns when handling Dysprosium(II) iodide?
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Dysprosium(II) iodide is classified as a Warning substance. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used. Ensure good ventilation.
How is Dysprosium(II) iodide packed and shipped?
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Dysprosium(II) iodide is typically supplied as a powder. It is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions adhering to all relevant shipping regulations for chemical products.
How can I request a quote or sample for Dysprosium(II) iodide?
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To request a quote or a sample of Dysprosium(II) iodide, please contact the Tech Serve Solutions sales team through our website or by phone. Please specify the quantity required and your shipping destination.
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