Term: mercaptopurine
IPA: mɜːˌkap.tə(ʊ)ˈp(j)ʊə.ɹiːn, mɚˌkæp.təˈpjʊɹˌin

==English==
[[File:Mercaptopurine.svg|thumb|150px|Chemical structure of '''mercaptopurine''']]
{{wp}}

===Alternative forms===
* {{alter|en|6-mercaptopurine}}

===Etymology===
{{ety|en|:af|mercapto-|purine|text=+|tree=1}}

===Pronunciation===
* {{IPA|en|/mɜːˌkap.tə(ʊ)ˈp(j)ʊə.ɹiːn/|/mɜːˌkap.tə(ʊ)ˈpjɔː.ɹiːn/|a=RP}}
* {{IPA|en|/mɚˌkæp.təˈpjʊɹˌin/|a=GA}}

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

# {{lb|en|pharmaceutical drug}} An [[thiol]] [[antimetabolite]] C<sub>5</sub>H<sub>4</sub>N<sub>4</sub>S that interferes