13170-23-5 Acetic acid, dianhydride with silicic acid (H4SiO4) bis(1,1-dimethylethyl) ester Di-tert-butoxydiacetoxysilane Diacetoxydi-tert-butoxysilane EINECS 236-112-3 Silane, di(tert-butoxy)diacetoxy-