Product Description: 2-Benzhydrylsulfinylacetic acid (Modafinil acid) is the metabolite of modafinil[1].
Formula: C15H14O3S
References: [1]Gorman SH. Determination of modafinil, modafinil acid and modafinil sulfone in human plasma utilizing liquid-liquid extraction and high-performance liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci. 2002 Feb 15;767(2):269-76.