1992-48-9 Isopropyl silicate ((C3H7O)4Si) NSC252164 Silicic acid (H4SiO4), tetraisopropyl ester Silicic acid (H4SiO4), tetrakis(1-methylethyl) ester Tetra(isopropoxy)silane Tetraisopropoxysilane Tetraisopropyl o-silicate Tetrakis(i-propoxy)silane