68554-64-3 Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes and polypropylene glycol mono-Bu ether
68554-68-7 Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, polyethylene-polypropylene glycol and polyethylene-polypropylene glycol mono-Bu ether