Scyllo-Inositol is one of the inositol stereoisomers rare in the nature and expected as a promising disease-modifying therapeutic agent for Alzheimer's disease.

β-Amyloid (11-22) is a peptide fragment of β-Amyloid.Beta-amyloid peptide (Abeta), the major constituent of amyloid plaques in the brains of Alzheimer’s patients, is thought to be the cause of Alzheimer’s Disease (AD). AD is the most common neurodegenerative disease and afflicts about 10% of the population over 60.

Amyloid beta-peptide(25-35) is the fragment Aβ(25-35) of the Alzheimer's amyloid β-peptide. Which has shown neurotoxic activities in cultured cells. The amino acid sequence of Aβ(25-35) peptide is NH2-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-COOH, where the first Gly represents the amino acid 25 and the last Met represents the amino acid 35 and it is also investigated in gel state for the first time.