What regulatory guidelines apply to [4-Acetamido-3-[(4-chlorophenyl)sulfanyl]-2-methyl-1H-indol-1-yl]acetic acid (CAS: 802904-66-1)?

The compound [4-Acetamido-3-[(4-chlorophenyl)sulfanyl]-2-methyl-1H-indol-1-yl]acetic acid (CAS: 802904-66-1) must comply with GHS (Globally Harmonized System of Classification and Labeling of Chemicals) for hazardous substance classification and labeling. It should also adhere to REACH regulations for the registration of chemicals in the European Union. In the United States, FDA and EPA may have additional requirements based on its intended use and properties.