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cytidylic acid[¦sid·ə¦dil·ik ′as·əd]
(also cytidine monophosphate), a natural compound; a nucleotide consisting of the pyrimidine base cytosine, the carbohydrate D-ribose, and phosphoric acid (seeNUCLEOTIDES). Cytidylic acid forms colorless platelets that are readily soluble in water. It has a molecular weight of 323.2 It is found in all living cells and is one of the four major types of monomers from which polymers of ribonucleic acids are formed.