Chattem Chemicals

Chattem Chemicals is a specialized manufacturer of Active Pharmaceutical Ingredients (APIs) and performance chemicals based in Chattanooga, Tennessee. As a wholly-owned subsidiary of Sun Pharmaceutical Industries, the company plays a critical role in the global supply chain for controlled substances and specialty chemical intermediates. Their product portfolio includes high-potency APIs such as methadone, buprenorphine, and fentanyl, alongside various aluminum-based compounds used in antacids and antiperspirants. The company operates a US FDA-registered facility that adheres to strict Current Good Manufacturing Practices (cGMP) and DEA regulations for Schedule II through V substances. Beyond API production, Chattem Chemicals offers contract manufacturing and development services (CDMO), supporting clients from process development through commercial-scale synthesis.