CC1=N[N]c2ccc3c(c2=C1)=NO[N+]3=O 70 Error in aromatic system N#CC(C#SN)=C1CCCCC1 255 Strange valence at S Cc1c(C)[n+](C)c(C(CC(=O)O)c2ccc(-c3ccc(S(#N)(O)O)cc3)o2)n1O 285 Strange valence at S CCCCn1c(N=C(O)/C=C/c2cccc([N+](=O)[O-])c2)c([SH](=O)(O)c2ccccc2)c2nc3ccccc3nc21 466 Strange valence at S O=[N+]1ON=c2c1ccc1c2=CC=N[N]1 81 Error in aromatic system CC1=c2c(ccc3c2=NO[N+]3=O)[N]N=C1 290 Error in aromatic system CN1C(=C2C=CC(=[F+])C=C2)N(C)c2ccccc21 26 Strange valence at F CN(C)C=C1CCN(c2ccccc2Cl)C1=[Cl+] 78 Strange valence at Cl