Molecular Formula: C55H75N17O13 Molecular Weight: 1182.3 CAS No.: 34973-08-5 SPECIFICATIONS: 1 .Appearance : White powder 2 .Specific Optical Rotation [ a] eq o( s up 6 ( 20) , s do 2( D) ) 20 D( c= 1, 1% HAc) : -55.0~ -65.0° 3 .Water Content( Karl Fischer) : d8.0% 4 .Acetate Content( by HPLC) : d10.0% 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 Becterial Endotoxins : d5EU/ mg Packing: plastic vial( dedicated for peptide packing) or glass vial, quantity according to customer' s detail requirement. Storage a cool( 2~ 8 ) & dry place protected from light, keep package close when not in use.