Chemical Product Library / Reference

Tris(2,4-di-tert-butylphenyl) phosphite

Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.

Molecular structure for Tris(2,4-di-tert-butylphenyl) phosphite

Chemical identity

English nameTris(2,4-di-tert-butylphenyl) phosphite
English synonymsAntioxidant 168;Irgafos 168;Phosphite 168
Chinese name三(2,4-二叔丁基苯基)亚磷酸酯
Chinese synonyms抗氧剂168;亚磷酸三(2,4-二叔丁基苯基)酯;Irgafos 168
Chemical categoryAntioxidants
CAS No.31570-04-4
EINECS No.250-709-6
Molecular formulaC42H63O3P
Molecular weight646.93
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.

Technical indicators

Assay ≥99.0%; melting point 183–187°C; acid value ≤0.1 mg KOH/g; volatile matter ≤0.5%; ash ≤0.1%

Performance characteristics

White crystalline powder, organophosphite secondary antioxidant, excellent color protection and processing stability

Application scenarios

Polyolefins, engineering plastics, elastomers antioxidant