Sinanox® 703 is a high-performance, multifunctional nitrogen-containing hindered phenolic antioxidant. It serves as both an antioxidant and a metal deactivator, making it highly effective in a wide range of polymers and lubricants. It is non-staining, non-discoloring, offers excellent thermal stability, and is approved for use in food-contact packaging materials in countries like Germany and Japan.
SINANOX® 703
(Nitrogen-containing hindered phenolic antioxidant)
Chemical Name: 2,6-di-tert-butyl-α-dimethylamino-p-cresol;2,6-Di-tert-butyl-4-(dimethylaminomethyl)phenol
MF:C17H29NO
MW:263.42
CAS No.: 88-27-7
Molecular structure：
Appearance | White to light yellow crystalline powder |
Assay (Purity) | ≥ 99.0 % |
Melting Point | 90 - 96 °C |
Flash Point | 138.0 °C |
Density | 0.92 g/cm³ |
Ash Content | ≤ 0.1 % |
Volatiles | ≤ 0.5 % |
Dual Functionality: Combines radical-scavenging (antioxidant) and metal deactivating properties in a single molecule.
Excellent Thermal Stability: Maintains high performance under severe processing and high-temperature conditions.
Low Volatility & Migration: Ensures long-term performance and extends the service life of the final product.
Non-Staining & Non-Discoloring: Ideal for applications where color stability is critical.
Effective Metal Deactivation: Chelates catalytic metal ions (e.g., Copper, Iron), inhibiting metal-induced degradation.
Rubber Industry
Applications: Tires, seals, conveyor belts.
Function: Protects natural and synthetic rubber from thermo-oxidative aging.
Typical Dosage: 0.1 - 0.5%
Plastics & Resins
Polyolefins (PE, PP): Inhibits thermal degradation during processing of films, pipes, and injection-molded parts.
Engineering Plastics (ABS, Polystyrene): Enhances weatherability for automotive parts and electronic housings.
Polyesters & Cellulosic Plastics: Used in fibers and packaging materials to prevent UV and oxygen degradation.
Lubricants & Mineral Oils
Applications: Engine oils, gear oils.
Function: Reduces sludge formation and extends oil drain intervals, especially in high-temperature industrial equipment.
25 kg/Carton,Drum
Or upon customer’s request.
Being kept in dry, clean warehouse with well ventilation.
Avoid exposing to light and heating.
Protecting the product from leakage, rain and insolation during transportation.
We offer a variety of options to help you find the right product for your application
Provide formulation optimization support for water-based/solvent-based systems
Full coverage of REACH, FDA, and GB standards
99.8% on-time delivery rate, 10,000-ton production capacity guarantee
