<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344297</termId><termName>EDTA</termName><termType>PT</termType><termNote><![CDATA[ Strong chelating agent used to sequester and remove metallic salts. A colorless crystalline compound, EDTA is used in medicine as an anticoagulant; stabilizes bleach in detergents; is used in conservation to clean stains from stone. ]]></termNote><termCreatedDate>2026-03-30 20:32:51</termCreatedDate><relation><relationType>UF</relationType><termId>31344298</termId><termName>ethylenediamine tetraacetic acid</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344299</termId><termName>ethylenediaminetetraacetic acid</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320277</termId><termName>acetic acid</termName><termType>PT</termType></relation></term>  </Zthes>