3-(diaminomethylideneamino)propanoic acid 3-guanidinopropanoic acid 3-Guanidinopropionic acid 353-09-3 3-carbamimidamidopropanoic acid EINECS 206-530-0 Guanidinopropionic acid N-(Aminoiminomethyl)-beta-alanine C03065 PDSP2_000137 CHEBI:15968 dl-.beta.-Guanidino propionic acid 3-Guanidinopropanoate .beta.-Guanidinopropionic acid PDSP1_000138 N-[amino(imino)methyl]-beta-alanine G6878_SIGMA beta-Guanidinopropionic acid Beta-Guanadinopropionate