3,4-Dichloroiodobenzene
3,4-Dichloroiodobenzene (CAS: 20555-91-3) is an organoiodine compound with the molecular formula C6H3Cl2I and a molecular weight of 272.90 g/mol. This halogenated aromatic hydrocarbon serves as a valuable building block in organic synthesis. It is primarily utilised in research and development laboratories for the construction of more complex molecular architectures, particularly within the pharmaceutical and agrochemical industries. Tech Serve Solutions supplies this compound with an assay of 98%.
- Synonyms
- Cl2C6H3I

Organic Synthesis Intermediate
This compound is a key intermediate in various organic synthesis pathways. Its reactivity allows for further functionalisation, making it useful in the development of novel compounds.
Pharmaceutical Research
Used in the synthesis of potential drug candidates and active pharmaceutical ingredients (APIs). Its structure can be incorporated into molecules designed for therapeutic purposes.
Agrochemical Development
Serves as a building block for the creation of new pesticides, herbicides, and fungicides. Modifications of this structure can lead to compounds with specific agricultural applications.
Material Science
Can be employed in the synthesis of specialised organic materials where halogenated aromatic structures are required for specific electronic or physical properties.
| Molecular weight | 272.90 |
|---|---|
| Linear formula | Cl2C6H3I |
| Assay | 98% |
| Melting point | 27-29 °C(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 3,4-Dichloroiodobenzene used for?
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3,4-Dichloroiodobenzene is primarily used as a building block and intermediate in organic synthesis, particularly in the research and development of pharmaceuticals and agrochemicals.
What are the CAS number and formula for 3,4-Dichloroiodobenzene?
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The CAS number for 3,4-Dichloroiodobenzene is 20555-91-3, and its linear formula is Cl2C6H3I.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Dichloroiodobenzene with a minimum assay of 98%. This is typically considered a research or technical grade; TSS does not represent this product as USP, BP, or EP grade.
What are the safety and handling considerations for 3,4-Dichloroiodobenzene?
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Handling 3,4-Dichloroiodobenzene requires appropriate personal protective equipment, including eyeshields and gloves. Respiratory protection such as a type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound has a WGK Germany classification of 3, indicating a high hazard to water.
Is 3,4-Dichloroiodobenzene a controlled substance?
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The provided data does not indicate that 3,4-Dichloroiodobenzene is a controlled substance.
How is 3,4-Dichloroiodobenzene packed and shipped?
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Tech Serve Solutions securely packs and ships fine chemicals globally, adhering to all necessary regulations for hazardous materials transport. Specific packaging details are available upon request.
How can I request a quote or sample for 3,4-Dichloroiodobenzene?
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To request a quote or a sample of 3,4-Dichloroiodobenzene, please contact our sales team via the website or direct email, providing your specific requirements.
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