WURCS=2.0/4,4,3/[a2112h-1b_1-?_2*NCC/3=O][a2112h-1a_1-?_2*NCC/3=O][a2112h-1b_1-?][a2112h-1a_1-?]/1-2-3-4/a3-b1_b3-c1_c3-d1
