Article · Wikipedia archive · Last revised Jun 25, 2026

Calcium guanylate

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

Last revised
Jun 25, 2026
Read time
≈ 1 min
Length
163 w
Citations
2
Source
Calcium guanylate
source ↗
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
3D model (JSmol)
ChemSpider
E number E629 (flavour enhancer)
UNII
  • 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
  • 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
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).
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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.

As a food additive, it is used as a flavor enhancer, particularly low-salt products1 and has the E number E629.

References

References

  1. "Food-Info.net : E-numbers : E629 : Calcium guanylate". www.food-info.net. Retrieved 2020-04-02.