What regulatory guidelines apply to 4,4'-((1E,1'E)-(3,3'-dichloro-[1,1'-biphenyl]-4,4'-diyl)bis(diazene-2,1-diyl))bis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one) (CAS: 3520-72-7)?

The compound 4,4'-((1E,1'E)-(3,3'-dichloro-[1,1'-biphenyl]-4,4'-diyl)bis(diazene-2,1-diyl))bis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one) (CAS: 3520-72-7) is subject to classification under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) for hazardous chemicals. It falls under REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) regulations in the European Union, which require registration and safety data sheets. In the United States, it is regulated by the EPA for environmental and safety purposes, and by the FDA for any potential pharmaceutical use. Compliance with these regulations is essential for safe handling and transportation of the compound.