3-Hydroxy-2-iodo-4-methoxybenzaldehyde
3-Hydroxy-2-iodo-4-methoxybenzaldehyde (CAS: 138490-94-5; Formula: C8H7IO3; MW: 278.04 g/mol) is a specialised organic compound. It is an aldehyde derivative featuring hydroxyl, iodo, and methoxy functional groups on a benzaldehyde core. This compound serves as a valuable building block in organic synthesis, particularly for the preparation of more complex molecules in chemical research and development, contributing to the advancement of chemical science.
- IUPAC
- 2-Iodoisovanillin,4-Formyl-2-hydroxy-3-iodoanisole
- Synonyms
- 2-Iodoisovanillin4-Formyl-2-hydroxy-3-iodoanisole

Organic Synthesis Intermediate
This compound is utilised as a key intermediate in multi-step organic synthesis. Its unique combination of functional groups allows for diverse chemical transformations, making it suitable for constructing complex organic structures.
Research and Development
Primarily employed in laboratory settings for R&D purposes, it aids chemists in exploring new synthetic pathways and developing novel compounds. Its structure provides a versatile starting point for medicinal chemistry and materials science research.
Building Block Chemistry
As an organic building block, it offers a reactive scaffold for creating a wide array of derivatives. The presence of the aldehyde, hydroxyl, and iodo substituents enables various coupling and functionalisation reactions.
| Molecular weight | 278.04 |
|---|---|
| Empirical formula | C8H7IO3 |
| Assay | 97% |
| Melting point | 167-174 °C |

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 |
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-Hydroxy-2-iodo-4-methoxybenzaldehyde used for?
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3-Hydroxy-2-iodo-4-methoxybenzaldehyde is primarily used as an intermediate and building block in organic synthesis for research and development purposes, enabling the creation of more complex chemical compounds.
What is the CAS number and chemical formula for 3-Hydroxy-2-iodo-4-methoxybenzaldehyde?
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The CAS number is 138490-94-5 and the chemical formula is C8H7IO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Hydroxy-2-iodo-4-methoxybenzaldehyde with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 3-Hydroxy-2-iodo-4-methoxybenzaldehyde be handled safely?
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This compound is a Warning substance (GHS07) and 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. Ensure adequate ventilation and avoid breathing dust.
Is this chemical exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3-Hydroxy-2-iodo-4-methoxybenzaldehyde.
How can I request a sample or quote?
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To request a sample or quote for 3-Hydroxy-2-iodo-4-methoxybenzaldehyde, please contact our sales team through the website or by phone.
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