What regulatory guidelines apply to Azasetron Impurity 1 (CAS: 123040-79-9)?

Azasetron Impurity 1 (CAS: 123040-79-9) is subject to regulatory guidelines such as REACH in the EU, which requires registration, evaluation, authorization, and restriction of chemical substances. In the US, it must comply with the Toxic Substances Control Act (TSCA) and other relevant FDA and EPA requirements for safety and environmental protection. GHS classification is also important for handling and storage, including proper labeling with hazard warnings and storage precautions.