4-Phenylphenol
CAS 92-69-3
EC 202-179-2
Formula C12H10O
MW 170.21 g/mol
Pharmaceutical Intermediates Personal Care & CosmeticsPharmaceuticals & HealthcareFood & NutritionTextile, Leather & Paper Antioxidant & StabilizerPreservation & Biocide
Description
4-Phenylphenol (CAS 92-69-3), also known as 4-Biphenylol, p-Biphenylol, and Paraxenol, is a hydroxylated biphenyl compound with the molecular formula C12H10O. It carries no assigned E-code and is classified under HS code 29071900 within the phenol family.
In personal care formulations, 4-Phenylphenol functions as a preservative by disrupting microbial cell membranes, inhibiting bacterial and fungal growth at low concentrations. In textile and leather processing, it serves as an antioxidant stabilizer, protecting dye substrates from oxidative degradation during finishing. It is also used as an intermediate in hair dye synthesis and as a colorant precursor.
This material is supplied as a pharmaceutical-grade flaked solid, registered under REACH and compliant with applicable European chemical regulations. Procurement teams should confirm grade suitability against Ph.Eur. or internal specification requirements. Standard packaging formats are available upon request from our European distribution network.
In personal care formulations, 4-Phenylphenol functions as a preservative by disrupting microbial cell membranes, inhibiting bacterial and fungal growth at low concentrations. In textile and leather processing, it serves as an antioxidant stabilizer, protecting dye substrates from oxidative degradation during finishing. It is also used as an intermediate in hair dye synthesis and as a colorant precursor.
This material is supplied as a pharmaceutical-grade flaked solid, registered under REACH and compliant with applicable European chemical regulations. Procurement teams should confirm grade suitability against Ph.Eur. or internal specification requirements. Standard packaging formats are available upon request from our European distribution network.
Physical Properties
| Melting Point | 164-165 °C |
| Boiling Point | 305-308 °C |
| Density | 127 g/cm³ @ Temp: 25 °C |
| Flash Point | 330 °F |
| Appearance | light tan solid (odour threshold detection limit 0.7 ppm) |
| Color | White to slightly yellow |
| Form | Flakes |
| Water Solubility | 0.7 g/L (20 ºC) |
| Vapor Pressure | 0Pa at 25℃ |
| Refractive Index | 1.6188 (estimate) |
| pH | 7 (0.7g/l, H2O, 20℃) |
| Log P | 3.6 at 25℃ |
Safety & Handling (Learn More)
Warning GHS07 GHS09
H
H315H319H335H411
P
P261P264P271P273P280P319P321P391P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29071900 |
| UN Number | 3077 |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 2 |
Other Names
4-diphenylol4-biphenylolp-BiphenylolPARAXENOL2-DIPHENYLOL
Related Products
Raw Materials
Derivatives
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