1,1,1-tris(p-hydroxyphenyl)ethane
CAS Number
27955-94-8
EC Number
405-800-7
Abbreviation
THPE
What is 1,1,1-tris(p-hydroxyphenyl)ethane?
1,1,1-Tris(p-hydroxyphenyl)ethane, also known as THPE, is a trifunctional phenolic monomer used as a branching agent and crosslinker in polymer systems.
Where is 1,1,1-tris(p-hydroxyphenyl)ethane used?
- Epoxy and powder coatings: branching points that improve crosslink density and cured-film chemical resistance and thermal performance
- Adhesives and sealants: tuning of mechanical properties and cohesive strength in structural systems
- Polycarbonate: chain-branching comonomer for high-melt-strength grades suited to blow molding and extrusion
- Rubber and elastomer systems: phenolic curative and stabilizer for oxidative stability and durability
- Its three reactive hydroxyl groups allow formulators to build controlled network structures.
Commercial specifications
- CAS 27955-94-8
- Technical and high-purity grades, purity typically 98% or above
- Packaging from kilogram-scale bags to bulk quantities
Other Names (Synonyms)
1,1,1-tris(4-hydroxyphenyl)ethane|1,1,1-tris-(p-hydroxyphenyl)ethane|4-[1,1-bis(4-hydroxyphenyl)ethyl]phenol|Tris(4-hydroxyphenyl)ethane|THPE
What are the physical properties of 1,1,1-tris(p-hydroxyphenyl)ethane?
Melting Point 246-248 °C (lit.)
Boiling Point 531.8±45.0 °C(Predicted)
Density 1.252±0.06 g/cm3(Predicted)
Color White to Almost white
Form powder to crystal
Water Solubility 25.1mg/L at 20℃
Vapor Pressure 0Pa at 25℃
Log P 3.88 at 20℃
How is 1,1,1-tris(p-hydroxyphenyl)ethane classified and handled safely? Learn More
GHS09· Environmental Hazard
Hazard Statements
H401 Toxic to aquatic life
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements
P273 Avoid release to the environment.
P391 Collect spillage.
P501 Dispose of contents/container in accordance with local regulations.
Which trade and regulatory codes apply to 1,1,1-tris(p-hydroxyphenyl)ethane?
HS Code 2907290030
UN Number 3077
ADR Class 9
Packing Group III
Storage Class 11 - Combustible Solids
WGK (Germany) 2