4-Phenoxyphenol
4-Phenoxyphenol (CAS: 831-82-3), with the molecular formula C 6 5 OC 6 4 OH and a molecular weight of 186.21 g/mol, is a chemical compound primarily utilised as a versatile building block in organic synthesis. Its structure, featuring both a phenol and a phenoxy group, allows for diverse chemical transformations. It is widely employed in the synthesis of more complex organic molecules, serving as a key intermediate in various chemical processes. TSS supplies this compound with a high purity of 99%.
- IUPAC
- Hydroquinone monophenyl ether
- Synonyms
- Hydroquinone monophenyl ether

Organic Synthesis Intermediate
4-Phenoxyphenol serves as a crucial intermediate in the synthesis of various organic compounds. Its bifunctional nature allows it to participate in reactions targeting either the phenolic hydroxyl group or the aromatic rings, facilitating the construction of complex molecular architectures.
Building Block for Specialty Chemicals
This compound acts as a valuable building block in the development of specialty chemicals. Its inclusion in synthetic routes can impart specific properties to the final products, finding use in diverse areas of chemical manufacturing.
Research and Development
In research and development settings, 4-Phenoxyphenol is utilised for exploring novel chemical reactions and developing new synthetic methodologies. Its well-defined structure makes it a reliable starting material for academic and industrial research.
| Molecular weight | 186.21 |
|---|---|
| Linear formula | C6H5OC6H4OH |
| Assay | 99% |
| Melting point | 80-84 °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 |
|---|---|
| Flash point | 170 °C / 338 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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-Phenoxyphenol used for?
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4-Phenoxyphenol is primarily used as a building block in organic synthesis and as an intermediate in the production of specialty chemicals. It is also employed in research and development for exploring new synthetic routes.
What is the CAS number and molecular formula for 4-Phenoxyphenol?
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The CAS number for 4-Phenoxyphenol is 831-82-3, and its molecular formula is C 6 5 OC 6 4 OH.
What grade and purity does Tech Serve Solutions supply for 4-Phenoxyphenol?
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Tech Serve Solutions supplies 4-Phenoxyphenol with an assay of 99%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
How should 4-Phenoxyphenol be handled safely?
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4-Phenoxyphenol can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves, should be worn. Ensure good ventilation and avoid breathing dust.
How is 4-Phenoxyphenol packed and shipped?
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4-Phenoxyphenol is exported and supplied by TSS in appropriate packaging designed to maintain product integrity during transit. Specific packaging details can be confirmed upon request.
How can I request a quote or sample for 4-Phenoxyphenol?
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To request a quote or a sample of 4-Phenoxyphenol, please contact the TSS sales team through the website or by direct inquiry, providing your specific requirements.
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