.alpha.-Guanidinoacetic acid 352-97-6 Acetic acid, [(aminoiminomethyl)amino]- Betacyamine Betasyamine GLYCINE, N-AMIDINO- GLYCOCYAMINE Glycine, N-(aminoiminomethyl)- Glykocyamin Guanidine, (carboxymethyl)- Guanidineacetic acid Guanidinoacetic acid Guanidoacetic acid Guanidylacetic acid Guanyl glycine NSC26360