2,4-Dichloroiodobenzene
2,4-Dichloroiodobenzene (CAS: 29898-32-6) is a halogenated aromatic compound with the molecular formula Cl2C6H3I and a molecular weight of 272.90 g/mol. This chemical serves as a valuable building block in organic synthesis. It has been historically utilised in the preparation of polychlorinated biphenyls, such as 2,4,2′,4′-tetrachlorobiphenyl. Tech Serve Solutions offers this compound with a purity of 98%.
- Synonyms
- Cl2C6H3I

Organic Synthesis Intermediate
2,4-Dichloroiodobenzene functions as a key intermediate in the synthesis of more complex organic molecules. Its reactive iodine atom and dichlorinated phenyl ring allow for diverse chemical transformations.
Polychlorinated Biphenyl (PCB) Precursor
Historically, this compound has been used in the preparation of specific polychlorinated biphenyls, including 2,4,2′,4′-tetrachlorobiphenyl, a significant component of commercial PCB mixtures.
Research and Development
As a halogenated hydrocarbon, it is employed in academic and industrial research for developing new synthetic methodologies and exploring novel chemical entities.
| Molecular weight | 272.90 |
|---|---|
| Linear formula | Cl2C6H3I |
| Assay | 98% |
| Boiling point | 262-263 °C(lit.) |
| Density | 2.01 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.647(lit.) |
| Application | 2,4-Dichloroiodobenzene has been used in the preparation of 2,4,2′,4′ -tetrachlorobiphenyl, major component of commercial polychlorobiphenyls1. |

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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 2,4-Dichloroiodobenzene used for?
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2,4-Dichloroiodobenzene is primarily used as an intermediate in organic synthesis, including its historical application in the preparation of polychlorinated biphenyls.
What are the CAS number and formula for 2,4-Dichloroiodobenzene?
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The CAS number is 29898-32-6, and its linear formula is Cl2C6H3I.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4-Dichloroiodobenzene with an assay of 98%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
How should 2,4-Dichloroiodobenzene be handled safely?
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Handle with care. It is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Wear appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation or use a suitable respirator.
Can Tech Serve Solutions export 2,4-Dichloroiodobenzene?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2,4-Dichloroiodobenzene.
How can I request a sample or quote for 2,4-Dichloroiodobenzene?
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Please contact the Tech Serve Solutions sales team via our website or listed phone number to request a sample or a quotation for 2,4-Dichloroiodobenzene.
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