“…b-Resorcylidene aminoguanidine (RAG, C 8 H 10 O 2 N 4 ÁHCl) and 2,5-dihydroxybenzylidene aminoguanidine (BAG, C 8 H 10 O 2 N 4 ÁHCl) were prepared by direct condensation of equimolar amounts of aminoguanidine hydrogen carbonate (CH 6 N 4 ÁH 2 CO 3 ) with resorcylaldehyde or 2,5-dihydroxybenzaldehyde, respectively [12,13]. The resorcylidene semicarbazone (RAS-on, C 8 H 9 N 3 O 2 ) was prepared according to general methods of thiosemicarbazone aldehyde and ketone synthesis [14,15].…”