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Irganox® 245 FF

Technical Datasheet | Supplied by BASF
HSP Distance with PowerNox™ 1520: 1.4
Irganox® 245 FF by BASF is an ethylenebis (oxyethylene) bis-(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate). It is an antioxidant for processing and long-term thermal stabilization. It has low volatility, good color stability and is odorless. Exhibits high extraction resistance. Irganox® 245 FF protects the substrates against thermo-oxidative degradation during manufacturing, processing and end use. It is compatible with styrene polymers including polystyrenes, ABS, MBS, SB and SBR as well as POM homo-and copolymers. Also compatible with polyurethanes, polyamides, thermoplastic polyesters, PVC and other polymers. It is effective as chain stopper during PVC polymerization. Its recommended dosage level is 0.05 – 0.1 % for long-term thermal stability. Concentrations up to 1.0 % can be used depending on the substrate and the requirements of the end application.
Product Type
Antioxidants > Phenolics
Chemical Composition
CAS Number
Physical Form
Granules, Free-flowing
Product Status
Applications/ Recommended for
  • PVC
  • SBR
  • TPE and TPV > TPU (or TPE-U)
  • ABS
  • Other Thermoplastic > POM (Polyacetal)
  • PA, Nylon
  • Methacrylate-butadiene-styrene (MBS), Styrene-butadiene (SB), Polyurethane
  • Safety, regulation & environment > Low volatiles
  • Visual aspect & aesthetics > Color stability

Irganox® 245 FF Properties


Value & Unit
Test Condition
Test Method
Melting Range
76 - 79 °C
Flash Point
> 150 °C
Density @ 20°C
1.14 g/ml
SpecialChem additionnal informations based on CAS Number : 36443-68-2

Hansen Solubility Parameters

[17.6, 1.5, 6.2]
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Irganox® 245 FF. A practical determination of these HSP values would provide higher certainty. Learn More.

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