Ethyl 9H-perfluorononanoate1799-47-932 % similar 2,2,3,3,4,4,5,5,6,6,7,7-Dodecafluoroheptyl acrylate2993-85-331 % similar Octafluoropentyl methacrylate355-93-131 % similar 1H,1H,9H-Hexadecafluorononyl acrylate4180-26-131 % similar 1H,1H,11H-Eicosafluoroundecyl acrylate4998-38-331 % similar