Acetic acid, 1,1'-dianhydride with silicic acid (H4SiO4) bis(1,1-dimethylethyl) ester [13170-23-5] 90%Acetic acid, 1,1'-dianhydride with silicic acid (H4SiO4) bis(1,1-dimethylethyl)SKU: 13170235Add to Quote