6-Chloro-3-iodochromone
6-Chloro-3-iodochromone (CAS: 73220-39-0) is a halogenated heterocyclic compound with the molecular formula C9H4ClIO2 and a molecular weight of 306.48 g/mol. As a chromone derivative, it serves as a valuable building block in organic synthesis, particularly for the construction of more complex molecular architectures within pharmaceutical research and chemical development. Its specific substitution pattern offers unique reactivity for further functionalisation.
- IUPAC
- 6-Chloro-3-iodo-4H-benzopyran-4-one,6-Chloro-3-iodo-4H-chromen-4-one
- Synonyms
- 6-Chloro-3-iodo-4H-benzopyran-4-one6-Chloro-3-iodo-4H-chromen-4-one

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of novel organic compounds. The presence of both chloro and iodo substituents allows for diverse coupling reactions and transformations, facilitating the creation of complex heterocyclic structures.
Medicinal Chemistry Research
Serves as a scaffold for the development of potential pharmaceutical agents. Its chromone core and halogenation can be strategically modified to explore structure-activity relationships in drug discovery programs.
Building Block for Heterocycles
A versatile building block for the synthesis of pyrane derivatives and other related heterocyclic systems. The defined placement of halogens enables regioselective reactions, crucial for targeted synthesis.
| Molecular weight | 306.48 |
|---|---|
| Empirical formula | C9H4ClIO2 |
| Melting point | 141-147 °C |

Hazard statements
- H302Harmful if swallowed
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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 6-Chloro-3-iodochromone used for?
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6-Chloro-3-iodochromone is primarily used as a building block and intermediate in organic synthesis, with applications in medicinal chemistry research and the construction of complex heterocyclic compounds.
What are the CAS number and formula for 6-Chloro-3-iodochromone?
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The CAS number is 73220-39-0, and the empirical formula is C9H4ClIO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 6-Chloro-3-iodochromone typically at a research or technical grade. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
What are the safety and handling considerations for 6-Chloro-3-iodochromone?
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This compound is classified with a GHS07 symbol and a 'Warning' signal word. It carries the hazard statement H302 (Harmful if swallowed). Handle with appropriate personal protective equipment in a well-ventilated area to avoid ingestion and contact.
How is 6-Chloro-3-iodochromone packed and exported?
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As a global supplier, Tech Serve Solutions professionally packs and exports chemicals worldwide, adhering to all relevant shipping and customs regulations.
How can I request a sample or quote for 6-Chloro-3-iodochromone?
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To request a sample or a quotation, please use the 'Request Sample' or 'Request Quote' button on the product page, or contact our sales team directly.
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