fluorouracil, 5-fu molecule. it is pyrimidine analog, cytotoxic chemotherapy medication used to treat cancer. structural chemical

5fu actinic adrucil anticancer antimetabolite antineoplastic atom atomic cancer capecitabine carbon carcinoma chemical chemistry chemotherapy colorectal cytotoxic drawing drug flat fluorouracil formula hydrogen icon illustration keratoses medicine molecular molecule oncology organic oxygen pancreatic prodrug pyrimidine skeletal structural structure tegafur thymidine thymidylate thymineless tumor uracil vector