4-Hydroxy-3-iodobiphenyl
4-Hydroxy-3-iodobiphenyl (CAS 71031-48-6), with the molecular formula C12H9IO and a molecular weight of 296.10 g/mol, is a specialised organic building block. This iodinated phenol derivative is primarily utilised in organic synthesis, particularly in the development of novel chemical entities and intermediates. Its specific structure makes it a valuable precursor in research and development activities across various chemical disciplines.
- IUPAC
- 3-Iodo-4-phenylphenol,3-Iodo-(1,1′-biphenyl)-4-ol
- Synonyms
- 3-Iodo-4-phenylphenol3-Iodo-(1,1-biphenyl)-4-ol

Organic Synthesis Intermediate
Utilised as a key intermediate in multi-step organic syntheses, leveraging its reactive iodine and hydroxyl groups for further functionalisation and coupling reactions.
Research and Development
A valuable reagent in academic and industrial research laboratories for exploring new synthetic pathways and developing novel compounds with potential applications in materials science or medicinal chemistry.
Building Block for Complex Molecules
Serves as a foundational component in the construction of more complex molecular architectures, offering a specific biphenyl scaffold with defined substitution.
| Molecular weight | 296.10 |
|---|---|
| Empirical formula | C12H9IO |
| Assay | 95% |
| Melting point | 115-119 °C(lit.) |


Hazard statements
- H315Causes skin irritation
- H318Causes serious eye damage
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 38-41-51/53 |
| Safety statements (S) | 26-36/37/39-61 |
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-Hydroxy-3-iodobiphenyl used for?
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4-Hydroxy-3-iodobiphenyl (CAS 71031-48-6) is primarily used as a building block and intermediate in organic synthesis and research and development activities.
What is the CAS number and molecular formula?
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The CAS number is 71031-48-6 and the molecular formula is C12H9IO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Hydroxy-3-iodobiphenyl with a minimum assay of 95%. This product is supplied for research and development purposes and is not intended for USP, BP, EP, nutraceutical, or food applications.
How should 4-Hydroxy-3-iodobiphenyl be handled?
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This compound is classified as a Danger with hazards including skin irritation (H315), serious eye damage (H318), and is toxic to aquatic life with long-lasting effects (H411). Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation and avoid release into the environment (P273, P280, P305 + P351 + P338).
How is 4-Hydroxy-3-iodobiphenyl packed and exported?
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4-Hydroxy-3-iodobiphenyl is shipped under UN 3077, Class 9, Packing Group III. TSS offers global export services for this chemical.
How can I request a sample or quote?
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To request a sample or a quotation for 4-Hydroxy-3-iodobiphenyl, please contact the Tech Serve Solutions sales team through our website or by telephone.
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