Mallinckrodt Baker Inc. is a huge corporation in the pharmaceutical field, different from others due to its particular profile: it produces pure chemicals and has outsource capabilities. It also produces active ingredients and many substances related to nutritional products and dietary supplements. Furthermore, it delivers to companies producing dietary supplements and diet pills or sophisticated products for people with medical disabilities, with nutritional problems or facing dependence on food, alcohol or nicotine.

J.T.Baker is a division of Mallinckrodt Baker Inc., and is a worldwide producer of Laboratory, Biotechnology and Pharmaceutical, Specialty Industrial and Microelectronic chemicals. In 2001 Mallinckrodt Baker Inc. was bought by Tyco HealthCare, a huge global health care company which manufactures and distributes specialty medical products designed to sustain breathing, diagnose disease and relieve pain. Its portfolio includes disposable medical supplies, monitoring equipment, medical instruments and bulk analgesic pharmaceuticals and chemicals.