Tetrabromobisphenol A bis (2, 3-dibromopropyl ether)� (BDDP) CAS No.:21850-44-2 Formula: C21H20Br8O2 Molecular Weight: 943.62 Chracteristics: It is white powder, Soluble in dichloromethane, toluene, and insoluble in water and methanol Items Index Melting Point 105-115 C Bromine Content 67%min Volatile Matter 0.30% max Acetone Insoluble 0.060% max Carbonization Temperature 240 Cmin Whiteness 92min Usage: It is mainly used for plastics as flame-retardant, widely for PP,PE,PS,ABS resin rubber fiber etc high molecular material and electronic industry. Especially for PP plastics. It is the most excellent flame-retardant for PP Plastics to now Package: 25kg kraft bag or by customers requirement. Storage and Transportation: Handle with care, keep air-tight and dry. If you have any demand about my products.