What regulatory guidelines apply to 3-Bromo-2-pyrazinamine (CAS: 21943-12-4)?

3-Bromo-2-pyrazinamine (CAS: 21943-12-4) falls under the scope of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), which includes classification for health hazards, environmental hazards, and flammability. Additionally, it is regulated by the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) in the European Union, requiring manufacturers and importers to register substances above a certain tonnage threshold. In the United States, it must comply with the Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA) for safety and regulatory compliance.