What regulatory guidelines apply to 1-Phenyl-1,2-dihydro-3H-1,2,4-triazol-3-one (CAS: 4231-68-9)?

1-Phenyl-1,2-dihydro-3H-1,2,4-triazol-3-one (CAS: 4231-68-9) falls under the category of chemical substances regulated by the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), REACH regulations in the EU, and FDA/EPA guidelines in the USA. Producers and users must ensure compliance with these guidelines for labeling, storage, and disposal to prevent hazards to human health and the environment.