0 B15R1.917 O=S(=O)(O)C1=CC(S(=O)(=O)O)=C(O)C=C1 BBC/249 [1,0,0,0,0,0|3,0,0]=4 1 B16R1.11365 NC1=CC(Cl)=C(S(N)(=O)=O)C=C1S(N)(=O)=O BBC/233 [1,1,0,0,0,0|0,0,0]=2