M 3330 (OTTO) (3-Mercaptopropyl) trimethoxysilane, 95% Cas 4420-74-0 - used in the preparation of multi-walled carbon nanotubes and bilayer modified gold electrode. M 3330 (OTTO) (3-Mercaptopropyl) trimethoxysilane, 95% Cas 4420-74-0 - used as a precursor for silica.