Appearance:Colorless or white crystal
Appearance:White crystalline powder
Appearance:colorless crystal or white crystalline powder,
odorless or slightly special odor, with a special pleasant sour taste.
Appearance:White powder.
Appearance:Light yellow or yellow powder
Appearance:crimson crystalline or crystalline powder.
Appearance:yellow crystal powder or oil solution
colour:white crystalline powder
Appearance:White crystal or crystalline powder with special sweet taste, easily dissolves in water.,sparingly soluble in ethanol,and insoluble in ether.