Term: tioguanine
IPA: ˌtaɪ.oʊˈɡwɑˌnin

==English==
[[File:6-Thioguanin.svg|thumb|150px|Chemical structure of '''tioguanine''']]
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===Alternative forms===
* {{alter|en|thioguanine||US|UK}}

===Etymology===
{{ety|en|:af|thio-|guanine|text=+|tree=1}}

===Pronunciation===
* {{IPA|en|/ˌtaɪ.oʊˈɡwɑˌnin/|a=GA}}

===Noun===
{{en-noun|-}}

# {{lb|en|pharmaceutical drug}} A [[crystalline]] [[compound]] C<sub>5</sub>H<sub>5</sub>N<sub>5</sub>S which is a [[thio]] [[analog]] of [[guanine]] with [[cytotoxic]] properties as an [[antimetabolit