4-(diaminomethylideneamino)butanoic acid 4-guanidinobutanoic acid 4-Guanidinobutyric acid 463-00-3 NCIStruc2_000146 4-(carbamimidamido)butanoic acid CHEBI:15728 Butanoic acid, 4-[(aminoiminomethyl)amino]- Butanoic acid, 4-((aminoiminomethyl)amino)- (9CI) EINECS 207-331-1 NSC 521717 gamma-Guanidinobutyrate 4-((amino(imino)methyl)amino)butanoic acid .gamma.-Guanidinobutyric acid NCI60_004267 gamma-Guanidinobutyric acid NCIStruc1_001740 G6503_SIGMA 4-Guanidinobutanoate C01035 NCGC00014910 NSC-521717 NCI521717 NSC521717