What regulatory guidelines apply to 2-(4-Azepanyl)-4-(4-chlorobenzyl)-1(2H)-phthalazinone (CAS: 47491-38-3)?

2-(4-Azepanyl)-4-(4-chlorobenzyl)-1(2H)-phthalazinone (CAS 47491-38-3) is subject to various regulatory guidelines. It falls under the scope of the REACH regulation for European manufacturers and importers, requiring registration if the substance is produced or imported in quantities exceeding 1 ton per year. Additionally, it is classified according to the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), which mandates appropriate hazard communication including labels and safety data sheets. The FDA and EPA may also have specific requirements for its use and handling in the United States.