4-Iodophenol
4-Iodophenol (CAS: 540-38-5; Formula: IC6H4OH) is a key organoiodine compound with a molecular weight of 220.01 g/mol. This crystalline solid serves as a versatile building block in organic synthesis. Its reactivity makes it valuable in the preparation of more complex molecules, particularly within pharmaceutical research and the development of novel chemical entities. Available from TSS, it is a reliable reagent for various chemical transformations.

Organic Synthesis Intermediate
4-Iodophenol is widely employed as an intermediate in the synthesis of diverse organic compounds. It facilitates coupling reactions and serves as a precursor for functionalised aromatic systems in research and development settings.
Pharmaceutical Research
The compound is utilised in the development of new pharmaceutical agents. Its structure allows for modification to create novel drug candidates and complex molecular architectures.
Material Science Applications
It can be incorporated into the synthesis of specialised polymers and advanced materials where its specific chemical properties are advantageous.
| Molecular weight | 220.01 |
|---|---|
| Linear formula | IC6H4OH |
| Assay | ≥98.0% (GC) |
| Grade | purum |
| Boiling point | 138 °C/5 mmHg(lit.) |
| Melting point | 92-94 °C(lit.)92-94 °C |


Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 21/22-34 |
| Safety statements (S) | 26-36/37/39-45 |
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 4-Iodophenol used for?
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4-Iodophenol is primarily used as a building block and intermediate in organic synthesis, particularly in pharmaceutical research and the development of novel chemical entities.
What is the CAS number and chemical formula for 4-Iodophenol?
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The CAS number for 4-Iodophenol is 540-38-5, and its chemical formula is IC6H4OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Iodophenol with a purity of ≥98.0% (GC) and a 'purum' grade. We do not represent this product as USP, BP, or EP grade.
How should 4-Iodophenol be handled safely?
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4-Iodophenol is classified as corrosive and harmful if swallowed or in contact with skin. Handle with appropriate personal protective equipment, including gloves, eyeshields, and respiratory protection, in a well-ventilated area. Refer to the Safety Data Sheet for full details.
Is 4-Iodophenol a controlled substance?
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The provided data does not indicate that 4-Iodophenol is a controlled substance.
How is 4-Iodophenol packed and shipped?
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4-Iodophenol is shipped as UN 3261, Class 8, Packing Group III, indicating it is a corrosive solid, acidic, organic, n.o.s. (likely referring to its nature). TSS ensures compliant packaging and international export procedures.
How can I request a quote or sample of 4-Iodophenol?
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To request a quote or a sample of 4-Iodophenol, please contact our sales team via the details provided on our website.
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