<?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">optical brightener</topic></authority><related type="broader"><topic>bleach</topic></related><variant type="other"><topic>FWA</topic></variant><variant type="other"><topic>brightener, optical</topic></variant><variant type="other"><topic>fluorescent bleach</topic></variant><variant type="other"><topic>fluorescent brightener</topic></variant><variant type="other"><topic>fluorescent whitener</topic></variant><variant type="other"><topic>fluorescent whitening agent</topic></variant><variant type="other"><topic>optical bleach</topic></variant><variant type="other"><topic>optical brighteners</topic></variant><variant type="other"><topic>optical whitener</topic></variant> <note xml:lang="en"><![CDATA[ Refers to fluorescent brightening agents used in bleaching. ]]></note></mads>