# tioguanine

> English word · Noun · IPA /ˌtaɪ.oʊˈɡwɑˌnin/

## Definitions
1. A crystalline compound C₅H₅N₅S which is a thio analog of guanine with cytotoxic properties as an antimetabolite, given orally in the treatment of leukemia.

## Etymology
From thio- + guanine.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/tioguanine