| Item | Specifications |
| Characteristics | White to slightly yellow crystals, usually needelike |
| Odour | Characteristics of vanillia |
| Solubility | 1g of vanillin soluble in 100ml water, 3ml 70% or 2ml 95% ethanol at 25℃,in 20ml glycerol, in 20ml water at 80℃soluble in chloroform ,ether |
| Melting point | 81.0-83.0℃ |
| Purity (by GC) | ≥99.50% |
| Loss on drying | ≤0.5% |
| Arsenic (as ) | ≤0.0003% |
| Heavy metal (based on pb) | ≤0.001% |
| Residue on ignition | ≤0.05% |