(2H38)Octadecane (ìH??)OCTADECANE N-OCTADECANE-D38 Octadecane-1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,18-d38 Octadecane-D38