Melanotan 2

We are offering melanotan 2 (mt2) 10mgvial melanotan ii acetate molecular formula: c50h69n15o9 molecular weight: 1024.2 specifications: 1. Appearance: white to off-white crystalline powder or lumps 2. Specific optical rotation (c=0.5, 10% hac): -50.0~-60.0° 3. Water content(karl fischer): ≤ 5.0% 4. Acetate content(by hplc): ≤ 15.0% 5. Amino acid composition: ± 10% of theoretical 6. Purity (by hplc): ≥ 98.0% 7. Single impurity(by hplc): ≤ 1.0% 8. Peptide content(by %n): ≥ 80% 9. Assay(by anhydrous, acetic acid-free ): 95.0~105.0% 10. Bacterial endotoxins: ≤ 5eumg