Ethylene oxide-propylene oxide copolymer, MW 9760-13200 Ethylene oxide/propylene oxide copolymer (avg MW 9,760-13,200) Poloxamer-407 alpha-Hydro-omega-hydroxypoly(oxyethylene)/poly(oxypropylene)(55-61 moles)/poly(oxyethylene) block copolymer, avg MW 9760-