C 3018 (OTTO) Cyclohexanecarboxaldehyde, 97% Cas 2043-61-0 - used for the synthesis of poly(vinyl cyclohexanal). C 3018 (OTTO) Cyclohexanecarboxaldehyde, 97% Cas 2043-61-0 - used as model substrate in the synthesis of propargylamines using Fe3O4 nanoparticles as catalyst.