4-Bromo-2-tert-butylphenol is a fungicide that has been shown to have fungistatic activity against Aspergillus and other fungi. It has been shown to be effective for the elimination of fungal growth on plant material, such as fruit and vegetables. 4-Bromo-2-tert-butylphenol inhibits the growth of fungi by altering the pH levels in the environment, which results in a decrease in fungal growth. Fungi are killed by methylation when they come into contact with this chemical. This compound is also volatile and can be used as an organic solvent or formamide.