2,5-Dichloroiodobenzene
2,5-Dichloroiodobenzene (CAS: 29682-41-5) is a halogenated aromatic compound with the linear formula Cl2C6H3I and a molecular weight of 272.90 g/mol. This chemical serves as a valuable building block in organic synthesis, particularly for creating complex molecules. Its structure makes it suitable for introducing specific functionalities in research and development settings, contributing to advancements in chemical synthesis.
- Synonyms
- 1,4-Dichloro-2-iodobenzeneCl2C6H3I

Synthesis of Thioether Bond-Containing Diamines
2,5-Dichloroiodobenzene is utilised as a reactant in the synthesis of aromatic diamines that feature a thioether linkage. This application is crucial in developing specialised organic compounds with tailored properties for various research purposes.
Organic Building Block
As a di-substituted halogenated benzene derivative, this compound functions as a versatile building block. It enables the precise introduction of iodine and chlorine atoms onto an aromatic core, facilitating further chemical transformations in multi-step syntheses.
Chemical Synthesis Intermediate
This compound acts as an intermediate in the preparation of more complex organic molecules. Its reactive iodine atom is amenable to various coupling reactions, making it a useful component in academic and industrial research laboratories.
| Molecular weight | 272.90 |
|---|---|
| Linear formula | Cl2C6H3I |
| Assay | 98% |
| Boiling point | 255-256 °C/742 mmHg(lit.) |
| Density | 2.026 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.646(lit.) |
| Application | 2,5-Dichloroiodobenzene may be used in the synthesis of thioether bond-containing aromatic diamines. |
| Melting point | 21 °C(lit.) |

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 | 94 °C / 201.2 °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 2,5-Dichloroiodobenzene used for?
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2,5-Dichloroiodobenzene is primarily used as a building block and intermediate in organic synthesis, notably in the preparation of thioether bond-containing aromatic diamines.
What is the CAS number and formula for 2,5-Dichloroiodobenzene?
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The CAS number for 2,5-Dichloroiodobenzene is 29682-41-5, and its linear formula is Cl2C6H3I.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,5-Dichloroiodobenzene with a minimum assay of 98%. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations for handling 2,5-Dichloroiodobenzene?
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2,5-Dichloroiodobenzene is classified as a Warning substance, with hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, should be used.
How is 2,5-Dichloroiodobenzene packed, shipped, and exported?
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Tech Serve Solutions ensures secure and compliant packing for all its chemical products, including 2,5-Dichloroiodobenzene, for domestic and international export.
How can I request a quote or sample of 2,5-Dichloroiodobenzene?
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To request a quote or sample of 2,5-Dichloroiodobenzene, please contact our sales team through the website or by phone.
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