103245-63-2 2-FURANCARBOXYLIC ACID, 5-(((AMINOIMINOMETHYL)AMINO)METHYL)-, 6-(AMINOIMINOMETHY 2-Furancarboxylic acid, 5-(((aminoiminomethyl)amino)methyl)-, 6-(aminoiminomethyl)-2-naphthalenyl ester, dimethylsulfonate 6-Amidino-2-naphthyl-5-guanidinomethyl-furan-2-carboxylate dimethanesulfonate