Stearoylbenzoylmethane English name: Stearoylbenzoylmethane Also known as: Polyvinyl chloride heat stabilizer β-diketone Chemical formula: C??H??O? Molecular weight: 386.61 CAS Registry Number: 58446-52-9 EINECS: 261-257-4 Density: 0.931 g/cm3 Melting point: 56°C Boiling point: 493.4°C Flash point: 182.7°C Refractive index: 1.488 Appearance: Pale white powder Uses: 1. Auxiliary agent for novel calcium-zinc heat stabilizers in PVC 2. Co-stabilizer in calcium/zinc hydroxystearate stabilization systems 3. Used in the production of mineral water bottles, oil barrels, transparent sheets, and transparent films