1-Caprylaldehyde 1-Octaldehyde 1-Octanal 1-Octylaldehyde 124-13-0 ALDEHIDO C-8 Aldehyde C8 Caprylaldehyde Caprylic aldehyde InChI=1/C8H16O/c1-2-3-4-5-6-7-8-9/h8H,2-7H2,1H n-Octaldehyde n-Octyl Aldehyde n-octanal octanal