The Department of Chemistry at the College of Education for Pure Sciences held a seminar entitled (Phenols and their Bioactivity), which was given by M. Hanan Qais Saadoun, in the discussion room of the Department of Chemistry and in the presence of the head of the department and a number of professors and instructors, and the aim of the seminar was to define phenols as organic compounds used in various areas of life consisting of the association of the Arbolish group with the hydroxyl group, and phenol is active against a wide range of microorganisms In medical and pharmaceutical applications and in the treatment of skin diseases such as chemical peeling and others, and phenols are originally beneficial for the presence of the enzyme Phenolsuifo transfercise in the body that breaks down phenols and salicylates, unlike those with autism and hyperactivity because they lack this enzyme, and this is why it is encouraged to eat foods that contain phenols such as oranges And berries and others when they act as an antioxidant, as they protect the body from free oxygen that destroys the cells, and from important uses also describe them as anti-cancer clinical treatments, where their effect is either directly on cancer cells or by modifying the body’s immune system.