Benzo(a)pyrene free-radicals formation in the presence of butylated hydroxyanisole and their possible importance in carcinogenesis.

By the method of UV irradiation of benzopyrene in the presence of butylated hydroxyanisole, the benzopyrene EPR spectra was investigated and the possible mechanism by which the carcinogenic activity of benzopyrene in the presence of butylated hydroxyanisole is lowered, was studied.