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C9H13N3O5 Cytosine riboside, a nucleoside composed of one molecule each of cytosine andD-ribose.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(also cytosine riboside), a natural organic compound; a nucleoside consisting of the pyrimidine base cystosine and the carbohydrate D-ribose. Cytidine forms long, needle-like crystals or a white crystalline powder, both of which are hygroscopic and readily soluble in water. It has a molecular weight of 243.2. Cystosine is found in all living cells as a component of ribonucleic acids and nucleotides.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.