<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">alpha-lipoic acid</topic></authority><related type="broader"><topic>acid</topic></related><related type="broader"><topic>antioxidant</topic></related><related type="broader"><topic>chelating agent</topic></related><variant type="other"><topic>acid, alpha-lipoic</topic></variant><variant type="other"><topic>alpha-lipoic acids</topic></variant><variant type="other"><topic>lipoic acid</topic></variant> <note xml:lang="en"><![CDATA[ An organosulfur compound with antioxidant properties used as a chelating agent. It has been used for the removal of arsenic- and mercury-based pesticide residues in museum objects. ]]></note></mads>