What regulatory guidelines apply to 2-Chloro-5H-pyrrolo[2,3-B]pyrazine (CAS: 889447-19-2)?

2-Chloro-5H-pyrrolo[2,3-B]pyrazine (CAS: 889447-19-2) is subject to regulatory guidelines under the Globally Harmonized System (GHS) for classification and labeling of chemicals. In the European Union, it falls under the REACH regulation, which requires registration of substances above a certain tonnage. For use in the United States, FDA and EPA regulations govern its import, use, and disposal. Specific safety data sheets (SDS) should be consulted for detailed guidelines.