(2R)-3-[(4-Fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanoic Acid is the R-isomer of 3-[(4-Fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanoic Acid (F595620); an impurity of Bicalutamide (B382000) which is a non-steroidal peripherally active antiandrogen. Also used as an antineoplastic (hormonal).
