Regulatory Status: UNODC Listed: Classified as a Table I Precursor under the United Nations Convention Against Illicit Traffic in Narcotic Drugs. DEA (USA): Regulated under the Controlled Substances Act (CSA). EU: Strictly monitored under Precursor Regulation (EU) 2021/1777. Safety & Handling: Hazards: Flammable, irritant (eyes/skin/respiratory system). PPE Required: Gloves, goggles, fume hood. Storage: In airtight containers, away from heat/light, under nitrogen if possible.