| Label | Id | |
|---|---|---|
| 4-Methyl-gamma-butyrolactone | 48569 | |
| 4-Pentanolide | 48569 | |
| 4-Valerolactone | 48569 | |
| dihydro-5-methyl-2(3H)-furanone | 48569 | |
| gamma-Pentalactone | 48569 | |
| gamma-Pentanolactone | 48569 | |
| 4-Hydroxypentanoic acid lactone | 48569 | |
| 4-Hydroxyvaleric acid lactone | 48569 | |
| 4-Methyl-4-hydroxybutanoic acid lactone | 48569 |