What regulatory guidelines apply to Morphinan-6-one, 4,5-epoxy-3,14-dihydroxy-17-(2-propenyl)-,hydrochloride, dihydrate, (5a)- (CAS: 51481-60-8)?

The compound falls under the purview of several regulatory frameworks. In the European Union, it is subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. In the United States, it may require registration with the FDA for pharmaceutical applications and with the EPA for any environmental or industrial use. GHS (Globally Harmonized System of Classification and Labeling of Chemicals) guidelines also apply regarding its hazard communication and classification.