This 6-Methylmercaptopurine, ~98%, is a purine derivative used as a metabolite intermediate for the synthesis of various pharmaceuticals. It has a molecular weight of 195.2 and is sold in a powder form. With a purity of ~98%, it is ideal for use in research and laboratory experiments. This product is for laboratory use only and should be handled with proper safety precautions. It is available in a variety of sizes for your convenience.