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| Names | |
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| 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 
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| Identifiers | |
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| 3D model (JSmol) | |
| ChemSpider | |
| E number | E629 (flavour enhancer) | 
|  PubChem CID | |
| UNII | |
|  CompTox Dashboard (EPA) | |
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| 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). | |
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 products [1] and has the E number E629.