WURCS=2.0/3,3,2/[h2112m_2*NCC/3=O][u1122A_2*NCC/3=O_3*NCC/3=O][u1121A_2*NCC/3=O_3*NCN/3=N]/1-2-3/a?|b?|c?}-{a?|b?|c?_a?|b?|c?}-{a?|b?|c?