<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31374285</termId><termName>ester</termName><termType>PT</termType><termNote><![CDATA[ Any of a class of often fragrant compounds formed by the reaction between an acid and an alcohol usually with the elimination of water. ]]></termNote><termCreatedDate>2026-03-30 20:40:56</termCreatedDate><relation><relationType>UF</relationType><termId>31374286</termId><termName>esters</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344084</termId><termName>oxygenated solvent</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411491</termId><termName>amyl acetate</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411494</termId><termName>butyl acetate</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411499</termId><termName>ethyl acetate</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411501</termId><termName>isopropyl acetate</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411503</termId><termName>methyl ester</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411506</termId><termName>stearin</termName><termType>PT</termType></relation></term>  </Zthes>