3,5,7,9-Tetraoxa-4,8-disila-6-stannaundecane, 6,6-dibutyl-4,4,8,8-tetraethoxy- 6,6-Dibutyl-4,4,8,8-tetraethoxy-3,5,7,9-tetraoxa-4,8-disila-6-stannaundecane 87735-26-0 EINECS 289-337-4