1,1-Diiodoethane
1,1-Diiodoethane (CAS 594-02-5), with the linear formula CH3CHI2, is an organic compound with a molecular weight of 281.86 g/mol. As a halogenated hydrocarbon, it serves as a valuable reagent and building block in organic synthesis. Its primary applications lie in facilitating chemical transformations where iodine substitution is required, contributing to the development of complex molecules in research and industrial chemical processes.
- IUPAC
- Ethylidene iodide
- Synonyms
- Ethylidene iodideCH3CHI2

Organic Synthesis Reagent
1,1-Diiodoethane is employed as a source of iodine in various organic reactions. It can participate in nucleophilic substitution reactions and addition reactions, enabling the introduction of iodine atoms into organic frameworks. This functionality is crucial for creating intermediates for pharmaceuticals and fine chemicals.
Building Block for Complex Molecules
This diiodoalkane acts as a versatile building block in the construction of more complex organic structures. Researchers utilise it to introduce specific carbon-iodine bonds, which can then be further functionalised through cross-coupling reactions or other synthetic methodologies.
Halogenation Studies
The compound is useful in studies involving halogenated hydrocarbons and their reactivity. Understanding the behaviour of compounds like 1,1-diiodoethane contributes to broader knowledge in organohalogen chemistry and materials science.
| Molecular weight | 281.86 |
|---|---|
| Linear formula | CH3CHI2 |
| Assay | ≥98.0% (GC) |
| Storage temperature | −20°C |

Hazard statements
- H302Harmful if swallowed
- 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) | Xn |
| Risk statements (R) | 22-36/37/38 |
| 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 1,1-Diiodoethane used for?
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1,1-Diiodoethane is primarily used as a reagent and building block in organic synthesis. It facilitates the introduction of iodine atoms into organic molecules, aiding in the creation of complex structures and intermediates for various chemical applications.
What is the CAS number and formula for 1,1-Diiodoethane?
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The CAS number for 1,1-Diiodoethane is 594-02-5, and its linear formula is CH3CHI2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,1-Diiodoethane with an assay of ≥98.0% (GC). TSS does not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for 1,1-Diiodoethane?
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1,1-Diiodoethane is classified with GHS07 symbol and a 'Warning' signal word. It is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, avoid breathing vapours, and ensure adequate ventilation. Store at -20°C.
How is 1,1-Diiodoethane packed and exported?
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1,1-Diiodoethane is carefully packed to ensure safe transit and is available for export globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or sample of 1,1-Diiodoethane, please contact our sales team through the website or by phone.
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