1,4-Bis(dimethylsilyl)benzene 1,4-Phenylenebis(dimethylsilane) 228860-42-2 2488-01-9 BRN 1072658 EINECS 219-638-8 Silane, 1,4-phenylenebis(dimethyl- Silane, p-phenylenebis(dimethyl- p-Bis(dimethylsilyl)benzene p-Phenylenebis(dimethylsilane)