| [Product Name]: | 5-hydroxy-4-methyl-2(5H)-furanone; 4-Methyl-5-hydroxy-2(5H)-furanone | 
| [Structural Formula]: |  | 
| [Molecular Formula]: | C5H6O3 | 
| [Molecular Weight]: | 114 | 
| [CAS NO]: | 40834-42-2 | 
| Properties | |
| Appearance | Yellow liquid | 
| Boiling range °C | 35-48 | 
| Quality Specifications | |
| Purity% | ≥98.0 | 
| Moisture% | ≤0.5 |