Quick Product Information

Product NameSUNSORB®329
CAS Number3147-75-9
Chemical FormulaC20H25N3O
Supply OriginChina
DocumentsCOA / SDS / TDS / Specification available upon request
InquiryRequest Quotation →

Product Overview

SUNSORB® 329 is a benzotriazole UV absorber providing selective UV light absorption and excellent thermal stability in demanding polymer and coating applications. It offers protection against UV-induced discoloration and mechanical property degradation in outdoor-exposed materials. SUNCHEM supports international buyers with SUNSORB® 329 sourcing from qualified Chinese producers, with quality documentation, export coordination, and logistics support.

Applications & Uses

  • UV absorber for outdoor polymer applications
  • Color stability in coatings and plastics
  • Photodegradation prevention in films and sheets
  • Light stabilizer for automotive components
  • Coating and varnish UV protection additive
  • Compatible UV filter for various polymer systems
  • Synergistic use with HALS light stabilizers

Why Source SUNSORB®329 Through SUNCHEM?

SUNSORB®329 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 SUNSORB®329 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)LABOTEST-BBLT00053579;EUSORB323;2-(2'-HYDROXY-5'-TERT-OCTYLLPHENYL)BENZOTRIAZOLE;2-(2'-HYDROXY-5'-TERT-OCTYLPHENYL)BENZOTRIAZOLChemicalbookE;2-(2-HYDROXY-5-TERT-OCTYLPHENYL)BENZOTRIAZOLE;2-(2H-BENZOTRIAZOL-2-YL)-4-(1,1,3,3-TETRAMETHYLBUTYL)PHENOL;TINUVIN329;OCTRIZOLE
CAS Number3147-75-9
Chemical Formula

C20H25N3O

Frequently Asked Questions

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