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. L-Valine chiral.bocsci.com/product/l-valine-cas-72-18-4-464878.html