What regulatory guidelines apply to tert-butyl 4-[6-({8-cyclopentyl-5-methyl-7-oxo-7H,8H-pyrido[2,3-d]pyrimidin-2-yl}amino)pyridin-3-yl]piperazine-1-carboxylate (CAS: 571189-65-6)?

The compound (CAS 571189-65-6) falls under the regulatory framework of REACH in Europe, which requires registration if manufactured or imported in quantities above 1 ton per year. It is also subject to GHS classification for hazardous chemicals, which includes information on physical hazards, health hazards, and environmental hazards. Additionally, FDA guidelines for pharmaceuticals and EPA regulations for environmental protection should be adhered to in the USA.