Organic tin stabilizer is one of the heat stabilizers. The main characteristics are high efficiency, high transparency, excellent heat resistance, and resistance to sulfide pollution. It is mainly used for food packaging film and other transparent PVC products. It has outstanding performance of inhibiting the early coloring of PVC products during processing, excellent UV resistance and long-term stability, good fluidity, good color retention during processing, and good transparency of products In particular, its photothermal stability has reached the international leading level, and can effectively maintain the recycling of secondary processing