5-Iodo-2,4-dimethoxybenzaldehyde
5-Iodo-2,4-dimethoxybenzaldehyde (CAS: 121177-67-1) is an organic compound with the molecular formula C9H9IO3 and a molecular weight of 292.07 g/mol. This iodinated aromatic aldehyde serves as a valuable building block in organic synthesis. Its structure, featuring an aldehyde functional group and methoxy substituents alongside an iodine atom, allows for diverse chemical transformations. It is primarily utilised in research and development settings for the construction of more complex molecules, particularly in the pharmaceutical and fine chemical industries.
- Synonyms
- C9H9IO32,4-Dimethoxy-5-iodobenzaldehyde

Organic Synthesis Intermediate
5-Iodo-2,4-dimethoxybenzaldehyde acts as a key intermediate in the synthesis of complex organic molecules. Its functional groups enable participation in various coupling reactions and transformations for constructing target compounds.
Pharmaceutical Research
This compound is employed in medicinal chemistry research for the development of novel drug candidates. Its specific structure can be incorporated into potential therapeutic agents.
Fine Chemical Production
As a versatile building block, it is utilised in the production of specialised fine chemicals. Applications may include the synthesis of dyes, agrochemicals, or advanced materials.
| Molecular weight | 292.07 |
|---|---|
| Empirical formula | C9H9IO3 |
| Assay | 97% |
| Melting point | 172-176 °C |

Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38-43-52 |
| 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-2,4-dimethoxybenzaldehyde used for?
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5-Iodo-2,4-dimethoxybenzaldehyde is primarily used as a building block in organic synthesis, particularly in pharmaceutical research and the production of fine chemicals. It enables the construction of more complex organic molecules.
What are the CAS number and molecular formula for 5-Iodo-2,4-dimethoxybenzaldehyde?
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The CAS number for 5-Iodo-2,4-dimethoxybenzaldehyde is 121177-67-1, and its molecular formula is C9H9IO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Iodo-2,4-dimethoxybenzaldehyde with an assay of 97%. This product is typically supplied for research and development purposes and is not represented as USP, BP, or EP grade.
How should 5-Iodo-2,4-dimethoxybenzaldehyde be handled safely?
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5-Iodo-2,4-dimethoxybenzaldehyde is classified as toxic if swallowed, causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation, and may cause respiratory irritation (H301-H315-H317-H319-H335). Handle with appropriate personal protective equipment, including gloves, eye protection, and in a well-ventilated area, avoiding inhalation of dust and contact with skin and eyes.
Is 5-Iodo-2,4-dimethoxybenzaldehyde a controlled substance?
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Based on the provided data, there is no indication that 5-Iodo-2,4-dimethoxybenzaldehyde is a controlled substance.
How is 5-Iodo-2,4-dimethoxybenzaldehyde packed and shipped?
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Tech Serve Solutions exports chemicals globally, adhering to international shipping regulations. Specific packing details will be provided based on order requirements and destination.
How can I request a quote or sample?
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To request a quote or sample of 5-Iodo-2,4-dimethoxybenzaldehyde, please contact our sales team through the website or via direct inquiry, providing your details and requirements.
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