| CAS No. | 590-86-3 |
| Molecular Formula | C5H4O2 |
| Molecular weight | 96.09 |
| Structure | - |
| FEMA# | 2692 |
| Appearance | colorless transparent liquid |
| Assay(% | ≥99% |
| Relative Density20℃/20℃ | 0.7860—0.7795 |
| Refractive Index(20℃) | 1.3890—1.3910 |
| Solubility(20℃) | soluble in water, 15 g/L |
| Aldehyde content(%) | ≥99 |
| Acid value (mg.KOH/g) | ≤1.0 |
| Packing & Storage | 200L plastic drum, 25L plastic drum. Stored in cool and dry place, should not be put in open air. |