Cytidine monophosphate, also known as 5'-cytidylic acid or simply cytidylate, and abbreviated CMP, is a nucleotide that is used as a monomer in RNA.^[1] It is an ester of phosphoric acid with the nucleoside cytidine. CMP consists of the phosphate group, the pentose sugar ribose, and the nucleobase cytosine; hence, a ribonucleoside monophosphate. As a substituent it takes the form of the prefix cytidylyl-.

Cytidine monophosphate

Names
IUPAC name 5′-Cytidylic acid
Systematic IUPAC name [(2R,3S,4R,5R)-5-(4-Amino-2-oxopyrimidin-1(2H)-yl)-3,4-dihydroxyoxolan-2-yl]methyl dihydrogen phosphate
Other names Cytidylic acid; 5'-Cytidylic acid; Cytidine 5'-monophosphate; Cytidine 5'-phosphate; Cytidylate; 5'-CMP
Identifiers
CAS Number	63-37-6 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:17361 Y
ChEMBL	ChEMBL307679 Y
ChemSpider	5901 Y
ECHA InfoCard	100.000.506
PubChem CID	6131
UNII	F469818O25 Y
CompTox Dashboard (EPA)	DTXSID50889322
InChI InChI=1S/C9H14N3O8P/c10-5-1-2-12(9(15)11-5)8-7(14)6(13)4(20-8)3-19-21(16,17)18/h1-2,4,6-8,13-14H,3H2,(H2,10,11,15)(H2,16,17,18)/t4-,6-,7-,8-/m1/s1 Y Key: IERHLVCPSMICTF-XVFCMESISA-N Y InChI=1/C9H14N3O8P/c10-5-1-2-12(9(15)11-5)8-7(14)6(13)4(20-8)3-19-21(16,17)18/h1-2,4,6-8,13-14H,3H2,(H2,10,11,15)(H2,16,17,18)/t4-,6-,7-,8-/m1/s1 Key: IERHLVCPSMICTF-XVFCMESIBY
SMILES c1cn(c(=O)nc1N)[C@H]2[C@@H]([C@@H]([C@H](O2)COP(=O)(O)O)O)O
Properties
Chemical formula	C9H14N3O8P
Molar mass	323.198 g·mol−1
Acidity (pKa)	0.8, 4.5, 6.3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references