1,4-Bis(dimethylhydroxysilyl)benzene 1,4-Bis(hydroxydimethylsilyl)benzene 2754-32-7 NSC83943 Silanol, 1,4-phenylenebis[dimethyl- Silanol, p-phenylenebis[dimethyl- p-Bis(dimethylhydroxysilyl)benzene p-Phenylenebis(dimethylsilanol)