| 1 | Piperidinic acid |
| 2 | 4-aminobutanoic acid |
| 3 | Omega-aminobutyric acid |
| 4 | Gamma-aminobuttersaeure |
| 5 | Gaba |
| 6 | 4abu |
| 7 | Gamma-amino-n-butyric acid |
| 8 | Gamma-aminobutanoic acid |
| 9 | Piperidic acid |
| 10 | 4-aminobutyric acid |
| 11 | Gamma-amino-butanoic acid |
| 12 | Gamma(amino)-butyric acid |
| 13 | 4-azaniumylbutanoate |
| 14 | 4-ammoniobutanoate |
| 15 | 4-aminobutanoate |