WURCS=2.0/3,3,3/[a2112m-1a_1-5_2*NCC/3=O_4*N][a2112A-1a_1-5][a2112A-1a_1-5_2*OCC/3=O_3*OCC/3=O]/1-2-3/a3-b1_b3-c1_a1-c4~n