Rintech, Inc. is a contract research and development company that specializes in the synthesis of pharmaceutical intermediates and biologically active molecules (heterocyclic compounds, unnatural amino acids, etc) in quantities ranging from milligrams to hundreds of grams. We also provide kilograms to tons of the products from our associated manufacturers and suppliers. Our goal is to serve the chemical and pharmaceutical industry by providing excellence in custom organic synthesis, rapid delivery, and products of the highest purity, plus competitive price.