It is my pleasure to introduce you our new product. The Third Monomer of Polyester(SIPM/SIPE). It is mainly used in the synthesis of polyester added in as the third monomer, which can improve processionand dring ability of polyester. It can also be used as the catalyst in organic synthesis, macromolecular synthesis, and fine chemistry. We are the biggest producer of SIPM in China    If you have any required pls do not hesitate to contact me. Regards,