1, 2-Propanediol CAS number:57-55-6 Formula: C3H8O competitive price,stable supply,high quality Specifications1.one of the largest supplier 2.Flexible payment ... raw material of unsaturated polyester resin. 2. It can be used for making plasticizer, surface-active agent, emulsifying agent, demulsifying agent. 1,2-propanediol ...