What regulatory guidelines apply to 2,4-Dichloro-3-ethyl-6-nitrophenol (CAS: 99817-36-4)?

2,4-Dichloro-3-ethyl-6-nitrophenol (CAS: 99817-36-4) is regulated under the Globally Harmonized System (GHS) for classification and labeling of hazardous chemicals. It falls under the European Union's REACH regulation, which requires manufacturers and importers to register the substance if it is manufactured or imported in quantities of 1 tonne or more per year. Additionally, it may be subject to the U.S. Environmental Protection Agency (EPA) and Food and Drug Administration (FDA) regulations based on its intended use.