4-(diaminomethylideneamino)butyl 4-hydroxy-3,5-dimethoxybenzoate 4-guanidinobutyl 4-hydroxy-3,5-dimethoxy-benzoate 4-hydroxy-3,5-dimethoxybenzoic acid 4-guanidinobutyl ester 4-hydroxy-3,5-dimethoxy-benzoic acid 4-guanidinobutyl ester 4-(diaminomethylideneamino)butyl 4-hydroxy-3,5-dimethoxy-benzoate 24697-74-3 7097-09-8 Leonurine 4-Guanidino-n-butyl syringate Benzoic acid, 4-hydroxy-3,5-dimethoxy-, 4-((aminoiminomethyl)amino)butyl ester