Answer: inosines

AnswerCrossword Clue
inosinesa nucleoside C10H12N4O5 that is composed of hypoxanthine and ribose, that in the form of its monophosphate is a biosynthetic precursor of both AMP and its guanosine analog, and that binds to adenine, cytosine, or uracil especially in some transfer RNAs compare poly ic
inosinesINOSINE, a compound of hypoxanthine and ribose