Apparence : White powder Specific Optical Rotation (c=0.5,10% HAc) :-50.0~-60.0° Water Content(Karl Fischer) : ≤5.0% Acetate Content(by HPLC) : ≤15.0% Amino Acid Composition :±10% of theoretical Purity(by HPLC) : ≥98.0% Single Impurity(by HPLC) : ≤1.0% Peptide Content(by %N) : ≥80% Assay(By Anhydrous, Acetic Acid-free ) : 95.0~105.0% Bacterial Endotoxins : ≤5EU/mg