68937-56-4 Siloxanes and Silicones, di-Me, ((methylsilylidyne)tris(oxy))tris-, hydroxy-terminated, ethers with polyethylene-polypropylene glycol mono-Bu ether Siloxanes and Silicones, di-Me, ((methylsilylidyne)tris(oxy))tris-,hydroxy-terminated, ethers with polyethylene-polypropylene glycol mono-Bu ether Siloxanes and silicones, di-Me, (methylsilyldyne)tris(oxy)tris-, hydroxy terminated, ethers with polyethylene - polypropylene glycol monbutyl ether