BOC Sciences is committed to the development and manufacture of chiral catalysts and ligands, chiral auxiliaries and chiral synthetic building blocks. We can provide high-quality, fast and economical resolution, synthesis, production, processing, analysis and testing services for universities, scientific research institutes, domestic and foreign pharmaceutical companies and new drug research and development institutions. CAS 56-87-1 https://chiral.bocsci.com/prod....uct/l-lysine-cas-56-