3-06-00-04522 (Beilstein Handbook Reference) 4-Methyl-3,5,6-tribromopyrocatechol 56759-56-9 6-Hydroxy-2,4,5-tribromo-m-cresol BRN 2263389 Pyrocatechol, 4-methyl-3,5,6-tribromo- m-Cresol, 6-hydroxy-2,4,5-tribromo-