or
(Cys26)-Amyloid beta -Protein^ (Cys26)-Amyloid beta -Protein (1-40) (Dimer) Trifluoroacetate salt, (Disulfide bond), Synonym: Amyloid beta -Protein (1-40) S26C (Dimer), Molecular Formula: C388H588N106O114S4, For Alzheimers Disease