Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Rianlon RIANOX 445 Antioxidant

Rianlon RIANOX 445 Antioxidant is a high-performance hindered phenolic antioxidant from Rianlon’s RIANOX series, widely used in polyolefins, ABS, and engineering plastics to prevent thermal and oxidative degradation during processing and service life. It offers excellent melt stability, low volatility, and good compatibility with polymers.
  • rianlon rianox 445 antioxidant_616889d1
  • rianlon rianox 445 antioxidant_616889d1

Features Of Rianlon RIANOX 445 Antioxidant

  1. High-performance hindered phenolic antioxidant offering exceptional thermal and oxidative stability.

  2. Low volatility and excellent compatibility with polyolefins, engineering plastics, and elastomers.

  3. Non-staining and low migration, preserving product appearance and surface integrity during service life.

  4. Effective at low dosage levels (0.1–0.5 wt%), delivering cost-efficient stabilization.

  5. Meets major regulatory requirements for food-contact applications (FDA 21 CFR §178.2010, EU Directive 10/2011).

Typical Applications Of Rianlon RIANOX 445 Antioxidant

  1. Polypropylene (PP) fibers, films, and injection-molded automotive components.

  2. Polyethylene (PE) pipes, geomembranes, and rotational molding parts.

  3. Thermoplastic elastomers (TPEs) used in seals, grips, and medical tubing.

  4. Recycled polyolefin compounds requiring robust reprocessing stability.

  5. Masterbatches for color and additive concentrates in packaging and industrial films.

Specifications Of Rianlon RIANOX 445 Antioxidant

Chemical TypeHindered phenol
Product FormFree-flowing white to off-white powder
AppearanceCrystalline powder
Melting Point120–125 °C
Assay (by HPLC)≥ 99.0%
Volatile Matter (105 °C, 2 h)≤ 0.5%
Heavy Metals (as Pb)≤ 10 ppm
SolubilityFreely soluble in chloroform, THF, and hot toluene; slightly soluble in ethanol


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