SAFC, a division of Sigma-Aldrich Corporation, is a manufacturer of specialty chemicals and biologics for life sciences and high technology commercial applications. Services include custom cell engineering services, specifically the engineering and development of research and production cell lines; contract manufacturing, including clinical and commercial manufacturing of small molecule APIs, biologics, high potency APIs, with expertise in bioconjugation, fermentation, viral manufacturing and complex technologies; supply chain services; analytical services; and media development services, including customized media, buffers, concentrates, feeds and supplements.