Quick Product Information

Product NameTrisnonylphenyl Phosphite (TNPP)
CAS Number26523-78-4
Chemical FormulaC45H69O3P
Supply OriginChina
DocumentsCOA / SDS / TDS / Specification available upon request
InquiryRequest Quotation →

Product Overview

Trisnonylphenyl phosphite (TNPP) is a hydrolytically stable organophosphite antioxidant used as a processing stabilizer in PVC, polyolefins, and rubber, protecting against oxidative degradation during high-temperature polymer processing. SUNCHEM supports international buyers with TNPP sourcing from qualified Chinese producers, with quality documentation, export coordination, and logistics support.

Applications & Uses

  • Antioxidant processing stabilizer for PVC and polyolefins
  • Oxidation inhibitor in rubber compounding
  • Thermal stabilizer for polymer melt processing
  • Coating and adhesive antioxidant additive
  • Synergistic stabilizer with hindered phenol antioxidants
  • Lubricant and metalworking fluid antioxidant
  • Packaging film processing stabilizer

Why Source Trisnonylphenyl Phosphite (TNPP) Through SUNCHEM?

Trisnonylphenyl Phosphite (TNPP) sourcing requires careful verification of manufacturers, compliance with export documentation, and proper logistics management. SUNCHEM supports global customers by connecting them with qualified Chinese producers and managing the key steps from sourcing to shipment.

Qualified Producer Selection

We help customers identify suitable Chinese manufacturers based on product specifications, production scale, quality records, and export capability.

Quality & Document Support

We coordinate documents including COA, MSDS, TDS, product specifications, and other export-related documents required for international trade.

Export & Logistics Coordination

SUNCHEM works with experienced logistics partners to ensure safe and compliant shipment arrangements, including proper handling for regulated materials.

Flexible Sourcing Solutions

Whether you require regular commercial supply, trial orders, or long-term procurement support, we match suitable supply sources to your requirements.

Long-Term Supply Management

We help manage supplier communication, quality follow-up, shipment schedules, and supply chain stability.

Ready to Source Trisnonylphenyl Phosphite (TNPP) from China?

Send us your required purity, quantity, destination port, and documentation needs. Our team will respond with quotation details and available product documents.

Basic Info

Chemical Synonym(s)IRGAFOS TNPP; Tris(mono-nonylphenyl)phosphite,2,2'-methylene bis (4-methyl-6-nonyl phenol); nonyl-pheno phosphite; Phenol,nonyl-,phosphite; Naugard RM-51; Naugard PHR; Alkanox TNPP;
CAS Number26523-78-4
Chemical Formula

C45H69O3P

Characteristics

Density0.99 g/mL at 25 °C(lit.)
Boiling Point>360 °C(lit.)
Flash Point>230 °F
Refractive Indexn20/D 1.528(lit.)
Specific Gravity0.979~0.9870.990
SensitiveMoisture Sensitive
InChIKeyWGKLOLBTFWFKOD-UHFFFAOYSA-N
EPA Substance Registry SystemPhenol, nonyl-, phosphite (3:1) (26523-78-4)

Frequently Asked Questions

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