Calcium guanylate is a compound with formula Ca(C₁₀H₁₂O₄N₅PO₄). It is the calcium salt of guanylic acid.^[1] It is present in all living cells as part of RNA, and is commercially prepared from yeast extract or fish.

This article needs additional citations for verification. (April 2020)

Quick Facts Names, Identifiers ...

Calcium guanylate

Names
IUPAC name Calcium 5′-guanylate
Systematic IUPAC name Calcium [(2R,3S,4R,5R)-5-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl phosphate
Other names 5′-Guanylic acid calcium salt
Identifiers
CAS Number	15816-68-9 Y 38966-30-2 (non-specific) Y
3D model (JSmol)	Interactive image
ChemSpider	18598951 N
E number	E629 (flavour enhancer)
PubChem CID	12856107
UNII	8DB3O97A3G Y
CompTox Dashboard (EPA)	DTXSID40511549
InChI InChI=1S/C10H14N5O8P.Ca/c11-10-13-7-4(8(18)14-10)12-2-15(7)9-6(17)5(16)3(23-9)1-22-24(19,20)21;/h2-3,5-6,9,16-17H,1H2,(H2,19,20,21)(H3,11,13,14,18);/q;+2/p-2/t3-,5-,6-,9-;/m1./s1 N Key: KAFMRSAFJZENBN-GWTDSMLYSA-L N InChI=1/C10H14N5O8P.Ca/c11-10-13-7-4(8(18)14-10)12-2-15(7)9-6(17)5(16)3(23-9)1-22-24(19,20)21;/h2-3,5-6,9,16-17H,1H2,(H2,19,20,21)(H3,11,13,14,18);/q;+2/p-2/t3-,5-,6-,9-;/m1./s1 Key: KAFMRSAFJZENBN-NBKZKEOTBW
SMILES O[C@H]1[C@@H](O)[C@H](N2C=NC3=C2NC(N)=NC3=O)O[C@@H]1COP([O-])([O-])=O.[Ca+2]
Properties
Chemical formula	C10H12CaN5O8P
Molar mass	401.285 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Close

As a food additive, it is used as a flavor enhancer, particularly low-salt products^[1] and has the E number E629.