2'-Carbomethoxyphenyl 4-guanidinobenzoate 4-((Aminoiminomethyl)amino)benzoic acid 2-(methoxycarbonyl)phenyl ester 89022-11-7 BENZOIC ACID, 4-((AMINOIMINOMETHYL)AMINO)-, 2-(METHOXYCARBONYL)PHENYL ESTER BRN 5609851 Salicylic acid, methyl ester, ester with p-guanidinobenzoic acid