Dinoseb is an herbicide in the dinitrophenol family. The IUPAC name is 2-sec-butyl-4,6-dinitrophenol and its molecular formula is C10H12N2O5.
Dinoseb was approved for use in the United States based on safety data from Industrial Bio-Test Laboratories and subsequently withdrawn from the market in 1986 due to high incidences of birth defects.