What regulatory guidelines apply to Tetramethylphosphonium chloride (CAS: 1941-19-1)?

Tetramethylphosphonium chloride (CAS: 1941-19-1) falls under the GHS classification as a hazardous substance due to its ability to irritate the skin and eyes. It is also regulated under REACH in the European Union, which requires manufacturers and importers to register substances above a certain tonnage. FDA and EPA have specific labeling and disposal requirements for this compound, which should be followed to ensure compliance.