Rational Labs Private Limited Synthetic / Medicinal Chemistry Building Blocks, Scaffolds, Intermediate compounds for generating analogues Custom Synthesis of lead compounds in gram and kg quantities Bulk Activities and Intermediates Providing pure metabolites of pharmaceutical compounds (including deuterium and C 13 labeled) Reference compounds or Standard Compounds useful in in-vitro assays and in-vivo animal model studies Specially designed small molecules or analogues for Lead Generation as well as Lead Optimization studies.