2943-75-1 A 137 A 137 (coupling agent) Dynasylan OCTEO EINECS 220-941-2 NSC 42964 Octyl(triethoxy)silane Prosil 9202 Prosil 9234 Silane, triethoxyoctyl- Silquest A 137 Triethoxyoctylsilane Y 9187 n-Octyltriethoxysilane