WURCS=2.0/4,6,5/[a2112h-1b_1-?_2*NCC/3=O][a2112h-1b_1-5][a2122h-1a_1-5_2*NCC/3=O][a2122h-1b_1-5_2*NCC/3=O]/1-2-3-4-2-3/a3-b1_a6-d1_b4-c1_d4-e1_e4-f1
