Chemical Product Library / Reference
Tris(nonylphenyl) Phosphite
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Tris(nonylphenyl) Phosphite |
|---|---|
| English synonyms | TNPP;Tris(4-nonylphenyl) phosphite;Phosphorous acid tris(nonylphenyl) ester |
| Chinese name | 三(壬基苯基)亚磷酸酯 |
| Chinese synonyms | TNPP;抗氧剂TNPP;亚磷酸三壬基苯酯 |
| Chemical category | Antioxidants |
| CAS No. | 3050-88-2 |
| EINECS No. | 247-759-6 |
| Molecular formula | C45H69O3P |
| Molecular weight | 689 |
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
Phosphorus content 4.3–4.7%; acid value ≤0.1 mg KOH/g; color (Gardner) ≤3; refractive index 1.526–1.528
Performance characteristics
Colorless to pale yellow viscous liquid, secondary antioxidant, good thermal stabilization for polymers
Application scenarios
Polymer stabilizer (PE, PP, PVC), rubber antioxidant, lubricant additive