WURCS=2.0/3,4,3/[a2122m-1b_1-5_2*NCC/3=O][a2112A-1a_1-5_2*NCC/3=O_3*OCC/3=O][a2211m-1a_1-5]/1-2-3-3/a3-b1_b4-c1_c4-d1