What regulatory guidelines apply to 2-[(1E,3E,5Z)-5-{3,3-Dimethyl-1-[6-oxo-6-(2-propyn-1-ylamino)hexyl]-5-sulfo-1,3-dihydro-2H-indol-2-ylidene}-1,3-pentadien-1-yl]-1-ethyl-3,3-dimethyl-3H-indolium-5-sulfonate (CAS: 1345823-20-2)?

This compound is subject to regulatory guidelines such as GHS (Globally Harmonized System of Classification and Labeling of Chemicals) for classification and labeling. It is also regulated under REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) for the European market. Additionally, it may be subject to FDA and EPA regulations in the United States, including any required notifications and registration for industrial use.