Bayer AG is credited as inventing aspirin as well as many controversial drugs such as heroin, Ciproxin and Baycol. Bayer AG is a massive German based chemicals and pharmaceuticals manufacturer. It has operations in most countries worldwide and had global sales for 2007 of 32.4 billion euro. Its operations are divided into three sectors: Health, Agriculture and Polymers (plastics, synthetic rubber). The company sold its chemicals sector holdings (now Lanxess) in 2005, but is still a major player in the others through Bayer HealthCare, Bayer CropScience and Bayer MaterialScience.
It acquired Aventis' controversial CropScience business in 2001, which made the company a key player in the development, commercialization and sale of GM crops. For over 125 years Bayer has a distinguished history of corporate crimes ranging from the manufacture and sale of controversial drugs (Heroin, Ciproxin and Baycol), the development of chemical warfare agents and poisons (Chlorine Gas, Zyklon B and VX), the use of forced labour during WW2, and numerous cases of poisoning, side-effects and environmental pollution connected to its chemical and pharmaceutical products. In December 2001, Multinational Monitor rated Bayer AG as one of their Top Ten Worst Companies of the year.