mercapturic acid
noun
mer·cap·tu·ric acid
ˌmər-ˌkap-ˈt(y)u̇r-ik- 
: an acid C5H8O3S−R formed from cysteine and an aromatic compound in the body and usually excreted in the urine (as in the form of a glucuronide)
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“Mercapturic acid.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/mercapturic%20acid. Accessed 27 Oct. 2025.
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