<?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">alkane</topic></authority><related type="narrower"><topic>methane</topic></related><related type="broader"><topic>hydrocarbon</topic></related><variant type="other"><topic>alkanes</topic></variant> <note xml:lang="en"><![CDATA[ A member of the series of saturated hydrocarbons with the general chemical formula CnH2n+2, where "n" is a whole number.  Though generally nonreactive, they combust readily and many important fuels are alkanes, such as methane and butane, or mixtures of alkanes such as gasoline. ]]></note></mads>