... and purified from Thymosin Fraction 5 (TF5), is an acidic peptide comprised of 28 amino acid residues. It has biological ... compliance.Essential informationMolecular formula: C129H215N33O55Molecular weight: 3108.3Amino acid sequence:Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr- ... powder2,Water content (Karl Fischer) : ≤5%3,Acetate content (HPLC method): ≤5%4,Amino acid composition: ±10% theoretical value5,Purity (by ...