Molecular Formula: C56H78N16O12 Molecular Weight: 1167.3 CAS No.: 79561-22-1 SPECIFICATIONS: 1.Appearance : White powder 2.Specific Optical Rotation( c= 1, 1% HAc) : -47.0~ -57.0° 3.Water Content( Karl Fischer) : d8.0% 4.Acetate Content( by HPLC) : d15.0% 5.Amino Acid Composition : ± 10% of theoretical 6.Purity( by HPLC) : e98.0% 7.Single Impurity( by HPLC) : d1.0% 8.Peptide Content( by % N) : e80% 9.Assay( By Anhydrous, Acetic Acid-free ) : 95.0~ 105.0% 10 .Bacterial Endotoxins : d5EU/ mg