5-Iodo-2-furaldehyde
5-Iodo-2-furaldehyde (CAS: 2689-65-8; Formula: C5H3IO2; Molar Mass: 221.98 g/mol) is a versatile organic compound characterised by its furan ring substituted with an iodine atom and an aldehyde group. This chemical serves as a valuable building block in organic synthesis, particularly in the preparation of more complex heterocyclic compounds and pharmaceutical intermediates. Its reactivity stems from both the aldehyde functional group and the carbon-iodine bond, enabling diverse chemical transformations.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of novel organic molecules. The aldehyde group can participate in various condensation and addition reactions, while the iodo-substituent allows for cross-coupling reactions.
Pharmaceutical Building Block
Serves as a foundational component in the development of active pharmaceutical ingredients (APIs). Its heterocyclic structure and functional groups are amenable to modifications for drug discovery.
Heterocyclic Chemistry Research
Employed in research settings for the construction of diverse furan-containing compounds. It enables the exploration of new chemical space and the synthesis of novel heterocyclic systems.
| Molecular weight | 221.98 |
|---|---|
| Empirical formula | C5H3IO2 |
| Assay | 97% |
| Melting point | 125-128 °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 | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37 |
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 5-Iodo-2-furaldehyde primarily used for?
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5-Iodo-2-furaldehyde is primarily used as a building block and intermediate in organic synthesis, particularly for creating complex heterocyclic compounds and pharmaceutical intermediates.
What is the CAS number and chemical formula for 5-Iodo-2-furaldehyde?
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The CAS number for 5-Iodo-2-furaldehyde is 2689-65-8, and its chemical formula is C5H3IO2.
What grade and purity does Tech Serve Solutions supply for 5-Iodo-2-furaldehyde?
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Tech Serve Solutions supplies 5-Iodo-2-furaldehyde with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Iodo-2-furaldehyde be handled safely?
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Based on its GHS classification, 5-Iodo-2-furaldehyde is a Warning substance that may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust/fume/gas/mist/vapours/spray.
Is 5-Iodo-2-furaldehyde a controlled substance?
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The provided data does not indicate that 5-Iodo-2-furaldehyde is a controlled substance.
How is 5-Iodo-2-furaldehyde packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports fine chemicals and laboratory reagents globally, adhering to all relevant regulations for safe transport.
How can I request a sample or quote for 5-Iodo-2-furaldehyde?
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To request a sample or quote for 5-Iodo-2-furaldehyde, please contact our sales team through the website or by phone.
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