107-95-9 16690-93-0 2-Carboxyethylamine 3-Aminopropanoic acid 3-Aminopropionsaeure 36321-40-1 39748-53-3 87867-95-6 AI3-18470 Abufene Alanine, beta- BETA-ALANINE EINECS 203-536-5 FEMA No. 3252 NSC 7603 Propanoic acid, 3-amino- beta-Aminopropionic acid beta-Aminopropionsaeure