WURCS=2.0/3,4,3/[a2211m-1a_1-5][a2211m-1a_1-5_4*OCC/3=O][a2211m-1a_1-5_2*OCC/3=O_4*OCC/3=O]/1-2-3-2/a4-b1_b3-c1_c3-d1