E 1455 (OTTO) Ethyl cyano acetate, 98% Cas 105-56-6 - used in the synthesis of ethyl glyoxylate. E 1455 (OTTO) Ethyl cyano acetate, 98% Cas 105-56-6 - used to investigate the Knoevenagel condensation reactions in microreactor using zeolite catalysts obtained by grafting amino groups onto NaX and CsNaX zeolites.