Used as an effective heat stabilizer in polyvinyl chloride (PVC) and other chlorine-containing polymers. It helps prevent degradation during processing and extends the service life of the material by scavenging hydrogen chloride that is released under heat. Offers good compatibility with polymer matrices and maintains color stability in rigid and flexible PVC applications. Also utilized in cable compounds, films, and profiles where long-term thermal performance is required. Shows low volatility and good resistance to extraction, making it suitable for both indoor and outdoor applications.