CAS 334521-23-2 appears in our catalog under these names: (11–Azidoundecyl)trimethoxysilane, 11-Azidoundecyltrimethoxysilane, 94% , (11-Azidoundecyl)trimethoxysilane, >93.0%(GC), 11-azidoundecyl(trimethoxy)silane, 93%, 93%, (diazyn-1-ium-1-yl)[11-(trimethoxysilyl)undecyl]azanide. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Chemat, Fluorochem. Available pack sizes: 100mg, 1g, 250mg, 10mg, 5g.