It is white,silkete squama or acercse crystal. It has aslightle smell of benzoin of benzaldehyde. It sublimates at about 100°C,relative density is 1.316,boiliy point is 249.2°C, melting point is 121.7°C-123°C. It is difficult to dissolve water(0.34g/100ml,25°C), It can dissolve boiling water(4.55g/100ml,90°C)ethand, chloroform and ether, fixed oil and naphtha.

Spec and executive standard:
Industrial class:Q/TLHG001-2003
Food class:GB1902-94
Medical class:Chinese pharmacopoeia  GB95
English pharmacopoeia BP93.BP98
America pharmacopoeia USP24,Fcc4.

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