What regulatory guidelines apply to 6-Methoxy-3,4-dihydroisoquinoline hydrochloride (CAS: 93549-15-6)?

6-Methoxy-3,4-dihydroisoquinoline hydrochloride (CAS: 93549-15-6) is regulated under the Globally Harmonized System (GHS) for classification and labeling of chemicals. It falls under REACH regulations in the European Union, requiring registration, assessment, and authorization if used in quantities exceeding one tonne per year. Additionally, the FDA and EPA may have specific requirements for its use, handling, and disposal in the United States, particularly if it is intended for pharmaceutical or agrochemical applications.