L-胱硫醚已被用于超高效液相色谱中，用于验证胱硫醚及其丰度与脊椎动物变态的相关性。 它还被用作窦状GSH（谷胱甘肽）载体的抑制剂，以表明巯基氧化还原状态失衡与癌细胞中自噬的调节有关。 L-cystathionine has been used in ultra performance liquid chromatography to verify the correlation between cystathionine and its abundance and vertebrate metamorphosis. It has also been used as an inhibitor of the sinusoidal GSH (glutathione) carrier to show that the imbalance of thiol redox state is related to the regulation of autophagy in cancer cells.