Bitrex
- http://www.bitrex.com/
- A Brand of Denatonium Benzoate, discovered in 1958 by Macfarlan Smith Ltd. Includes history, technical data, applications, and the campaign for safety.
C-Tech Corporation
- http://www.ctechcorporation.com/
- Specializes in manufacturing the world's most bitter chemical, denatonium benzoate. Also manufacture several other chemicals including pigments, flame retardants, and pharmaceutical intermediates.
RC Pharmachem
- http://www.rcpharmachem.com/
- Manufacturer of denatonium benzoate, bitterants, and aversive and pharmaceutical intermediates. Includes product applications.
Sentinel
- http://sentinel.antalys.net/
- Belgian company providing denatonium benzoate and saccharide in various forms, for use as bittering agents. Includes applications and technical data.
