4-tert-Butylphenol
CAS 98-54-4
EC 202-679-0
Formula C10H14O
MW 150.22 g/mol
UV Absorbers & Stabilizers Plastics & PolymersPersonal Care & CosmeticsCoatings, Adhesives, Sealants & ElastomersLubricants & Metalworking UV Protection & StabilizationAntioxidant & StabilizerFlavoring & AcidulantPreservation & Biocide
Description
4-tert-Butylphenol (CAS 98-54-4, EC 202-679-0) is a phenolic compound also known commercially as Butylphen or p-tert-Butylphenol, with the molecular formula C10H14O. It belongs to the butylphenol isomer family and is classified under HS code 29071900 within the Polymers and Resins category.
In alkylphenol-formaldehyde resin synthesis, it acts as a chain-terminating monomer that controls molecular weight and improves adhesion in contact adhesives and sealants. As an antioxidant and UV absorber in polymer and lubricant formulations, it interrupts free-radical chain reactions, extending service life under thermal and oxidative stress.
Supplied as flakes or pastilles suitable for industrial handling, this material is registered under REACH and subject to standard European chemical compliance requirements. Procurement teams should confirm current SVHC status and applicable SDS documentation prior to sourcing, as regulatory classification for butylphenols continues to evolve within EU frameworks.
In alkylphenol-formaldehyde resin synthesis, it acts as a chain-terminating monomer that controls molecular weight and improves adhesion in contact adhesives and sealants. As an antioxidant and UV absorber in polymer and lubricant formulations, it interrupts free-radical chain reactions, extending service life under thermal and oxidative stress.
Supplied as flakes or pastilles suitable for industrial handling, this material is registered under REACH and subject to standard European chemical compliance requirements. Procurement teams should confirm current SVHC status and applicable SDS documentation prior to sourcing, as regulatory classification for butylphenols continues to evolve within EU frameworks.
Physical Properties
| Melting Point | 98 °C |
| Boiling Point | 237 °C |
| Density | 0.9 g/cm³ |
| Flash Point | 113 °C |
| Appearance | The butylphenols include several isomers. Solid butylphenols (28805-86-9) generally have properties similar to the above: |
| Color | White to light beige |
| Odor | at 1.00 % in propylene glycol. oakmoss leather |
| Form | Flakes or Pastilles |
| Water Solubility | 8.7 g/L (20 ºC) |
| Vapor Pressure | 1 mm Hg ( 70 °C) |
| Refractive Index | 1.4787 |
| pH | 7 (10g/l, H2O, 20℃) |
| Log P | 3 at 23℃ |
Safety & Handling (Learn More)
Danger GHS05 GHS08 GHS09 GHS07
H
H314H315H317H318H319H335H360H361H372H401H410H411
P
P203P260P261P264P270P271P272P273P280P316P317P318P319P321P363P391P405P501P264+P265P302+P352P304+P340P332+P317P333+P317P337+P317P362+P364P403+P233P301+P330+P331P302+P361+P354P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29071900 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Other Names
p-t-Butyl phenolPTBPB 110666ButylphenP-T-BUTYLPHENOLp-tert-Butylphenol
Related Products
Raw Materials
Need a chemical? Get a quote within 24 hours.