2-Methyl-2-tert-butyl-ketolactone 26687-80-9 2H-Pyran-2,5(6H)-dione, 4-bromo-6-(1,1-dimethylethyl)-3-hydroxy-6-methyl- (9CI) 2H-Pyran-2,5(6H)-dione, 4-bromo-6-tert-butyl-3-hydroxy-6-methyl- 4-Bromo-2-methyl-2-tert-butylketolactone 4-Bromo-6-tert-butyl-3-hydroxy-6-methyl-2H-pyran-2,5(6H)-dione Substance 86