What regulatory guidelines apply to 3,4,5,6-Tetrachloro-1,2-benzoquinone (CAS: 2435-53-2)?

3,4,5,6-Tetrachloro-1,2-benzoquinone (CAS: 2435-53-2) is regulated under the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), which requires it to be classified as a toxic substance and a skin and eye irritant. It also falls under the European Union's REACH regulation, which mandates detailed chemical safety assessments. Additionally, the U.S. Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA) regulate its use and disposal due to its toxicity and potential environmental impact.