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2,7-Dibromo-9H-fluoren-9-one METHYL 3,5-DIBROMO-2,4-DIHYDROXY-6-METHYLBENZOATE Tetrabromophthalic anhydride 1-Amino-2-bromo-4-hydroxy-9,10-anthraquinone 2-Bromo-9-fluorenone 2-Bromo-4-methylbenzaldehyde 2-AMINO-7-BROMO-9-FLUORENONE 2-bromo-5-methylbenzaldehyde