9-β-d-Ribosylhypoxanthine; a nucleoside formed by the deamination of adenosine. SYN: hypoxanthinosine.
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ino·sine 'in-ə-.sēn, 'ī-nə-, -sən n a crystalline nucleoside C10H12N4O5 formed by partial hydrolysis of inosinic acid or by deamination of adenosine and yielding hypoxanthine and ribose on hydrolysis
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in·o·sine (I) (inґo-sēn) a purine nucleoside, hypoxanthine linked by its N9 nitrogen to the C1 carbon of ribose. It is an intermediate in the degradation of purines and purine nucleosides to uric acid and in pathways of purine salvage. It also occurs in the anticodon of certain transfer RNA molecules.Medical dictionary. 2011.