1-04-00-00548 (Beilstein Handbook Reference) 13477-53-7 4-Amino-2-hydroxybutyric acid BRN 1752407 BUTYRIC ACID, 4-AMINO-2-HYDROXY- Butanoic acid, 4-amino-2-hydroxy- HABA alpha-Hydroxy-gamma-aminobutyric acid alpha-Oxy-gaba