Molecular formula:　C₆H₁₂O₆
　　Properties:　 white powder
　　Quality index:

Item	Unit	Standard value
Identification	-	meet the regulation
Specific optical rotation	-	+52.6-53.2°[α] D 25
Acidity or alkalinity	-	2.0g 0.02mol/L NaOH 0.2ml
Clarity and color of solution	-	meet the regulation
Ethanol solution的 Clarity	-	meet the regulation
Chloride	%	≤0.01
Sulfate	%	≤0.01
Sulfite and soluble starch	-	meet the regulation
Loss on dry	%	≤1.0
Residue on ignition	%	≤0.1
protein	-	meet the regulation
barium salt	-	meet the regulation
Calcium salt	%	≤0.01
Ferric salt	%	≤0.001
Heavy metals	ppm	≤4
Arsenic salt	T	≤0.0001

　　Uses:
　　1. used in ferment industry
　　2, used in food
　　3, used in specific optical rotation]
　　4, used in synthesis
　　5, used in drug 
　　Packing:　25KG/ woven bag or film coated paper bag.