Aspect : White powder Specific Optical Rotation (c=0.5,10% HAc) :-50.0~-60.0° Water Content(Karl Fischer) : ≤5.0% Acetate Content(prin HPLC) : ≤15.0% Amino Acid Composition :±10% of theoretical Purity(prin HPLC) : ≥98.0% Single Impurity(prin HPLC) : ≤1.0% Peptide Content(de %N) : ≥80% Assay(Prin Anhidru, Fara acid acetic ) : 95.0~105.0% Bacterial Endotoxins : ≤5EU/mg