What regulatory guidelines apply to Tributylsulfonium iodide (CAS: 18146-62-8)?

Tributylsulfonium iodide (CAS: 18146-62-8) is regulated under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) as a flammable liquid. It is also subject to the European Union's REACH regulations, which require manufacturers and importers to register substances if they meet certain tonnage thresholds. In the United States, the Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA) may regulate it based on its use and handling.