Since 1993, C/D/N Isotopes Inc. has provided its customers with superior quality and exceptional service. Researchers in all branches of science and medicine, from around the world, depend on C/D/N Isotopes as the company for deuterium labelled compounds. We currently have more than 3000 products in stock. As a result, we are able to ship most products within 24 to 48 hours after receipt of order. In fact, 98% of our orders are filled from stock. The majority of the products listed on this websi...