A 5431 (OTTO) (3-Aminopropyl)triethoxy silane, 99% Cas no 919-30-2 - used to prepare positively charged slides suitable for use with various immunohistochemical and in situ hybridization procedures. A 5431 (3-Aminopropyl)triethoxy silane, 99% Cas no 919-30-2 - used as adhesives and sealant chemicals, paint additives and coating additives.