A condensation product of l-cysteine with aromatic compounds, such as bromobenzene, and usually acetylated; formed biologically via glutathione in the liver and excreted in the urine; an S-substituted N-acetylated l-cysteine. Cf.:m. pathway.
* * *
mer·cap·tu·ric acid .mər-.kap-'t(y)u̇r-ik- n an acid C5H8O3S-R formed from cysteine and an aromatic compound in the body and usu. excreted in the urine (as in the form of a glucuronide)
* * *
mer·cap·tur·ic ac·id (mər-kap-tūrґik) a cysteine conjugate of an aromatic compound formed initially as a glutathione conjugate in the liver and excreted in the urine.Medical dictionary. 2011.