Molecular Formula: C64H83N17O12 Molecular Weight: 1281.64 CAS No.: 57773-65-6 SPECIFICATIONS: 1. Appearance: White powder or almost white powder 2. Identity by HPLC: The retention is same with the reference substance 3. Amino Acid Composition: Glu: 0.85^ 1.10 Pro: 0.85^ 1.10 Leu: 0.90^ 1.10 Tyr: 0.85^ 1.10 His: 0.85^ 1.10 Arg: 0.85^ 1.10 Ser: Present Trp: Present 4. Purity( By HPLC) : e98.0% 5. Related Substance( By HPLC) : Total Impurities( % ) d2.0% Largest Single Impurity( % ) d1.0% 6. Acetate Content( By HPLC) : d12.0% 7. Water Content( Karl Fischer) : d8.0% 8. Bacterial Endotoxins: d 70 IU/ mg 9. Assay( By anhydrous, acetic acid-free) : 95% ~ 105% 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.