Fluoroethyl is an organofluorine functional group in chemistry. Its chemical formulas are −CHFCH3 (1-fluoroethyl) and −CH2CH2F (2-fluoroethyl). The general formulas of a compound containing this group are R−CHFCH3 and R−CH2CH2F, where R stands for an organyl group.[1][2] An example of a compound containing the fluoroethyl group is (2-fluoroethyl)benzene Ph−CH2CH2F, where Ph stands for phenyl.