What regulatory guidelines apply to 3-Chloro-4-hydroxypyridine (CAS: 89284-20-8)?

3-Chloro-4-hydroxypyridine (CAS: 89284-20-8) falls under the GHS (Global Harmonized System of Classification and Labelling of Chemicals) and should be classified as a harmful substance. It is also subject to REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) regulations in the European Union, which may require supplier notifications and customer notifications. FDA and EPA guidelines may apply for its use in pharmaceuticals and agricultural products, respectively.