There are many hydrophobic amino acids in the sequence of β-Amyloid (17-40). Because there are no amino acids such as his and Trp, the stability of β-Amyloid (17-40) is good, but the purification is difficult.Go Top Peptide Biotech has a mature purification production system. For some insoluble peptides and peptides that are difficult to separate and purify, different equipment or systems will be tried to separate and purify, and finally a mature production process will be obtained.