Triethoxyoctylsilane (CAS NO.2943-75-1) is also named as A 137 ; A 137 (coupling agent) ; Dynasylan OCTEO ; NSC 42964 ; Octyl(triethoxy)silane ; Prosil 9202 ; Prosil 9234 ; Silane, triethoxyoctyl- ; Silquest A 137 ; UNII-LDC331P08E ; Y 9187 ; n-Octyltriethoxysilane . Triethoxyoctylsilane is colorless transparent liquid.