Molecular formula:　C₄H₇O₂Na
　　Molecular weight:　110.09
　　Properties:　white or off- white viliform moisture-adsorbing powder , with cheese Odor
　　Quality index:

Item	Unit	Standard value
Assay( as CH3CH2CH2COONa dry)	%	≥99.0
Solution of water	-	slight cloud
Loss on dry	%	≤5.0
Heavy metals( as Pb)	%	≤0.002
As	%	≤0.0002

　　Uses:
　　Commonly used as feed additives.
　　Packing:　20KG/ woven bagor cardboard drum.