Zhonghua Village, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province
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                | 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% |