2,4-Imidazolidinedione, 3-(3-((1,1-dimethylethyl)amino)-2-hydroxypropyl)-5,5-diphenyl-, monohydrochloride 3-(3-tert-Butylamino-2-hydroxypropyl)-5,5-diphenylhydantoin hydrochloride 56079-73-3 TR 2921