Synonyms: AC1MI5EF;LS-145907;41829-22-5;5,6-dihydroxy-1-methylspiro[3,8,9,9a-tetrahydro-2H-benzo[de]quinoline-7,5'-imidazolidine]-2',4'-dione;Spiro(7H-benzo(de)quinoline-7,4'-imidazolidine)-2',5'-dione, 1,2,3,8,9,9a-hexahydro-5,6-dihydroxy-1-methyl-, monohydrobromide, trans-