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xanthine |
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xanthine [′zan‚thēn] (organic chemistry) C5H4N4O2A toxic yellow-white purine base that is found in blood and urine, and occasionally in plants; it is a powder, insoluble in water and acids, soluble in caustic soda; sublimes when heated; used in medicine and as a chemical intermediate. Also known as dioxopurine. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In coffee, it's possible that caffeine, a methylxanthine, is the culprit. The methylxanthine in caffeine, and evident in chocolate, coffee, and tea, may cause lumps, which are experienced by most women, but there is no relation to these cysts or lumps and breast cancer," Carpenter said. That's because we now have ways of monitoring methylxanthine blood levels, and we now have pills that can be taken once or twice a day. |
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