Calcium sorbate

Calcium sorbate

Names
IUPAC name Calcium (2E,4E)-hexa-2,4-dienoate
Identifiers
CAS Number	7492-55-9
3D model (Jmol)	Interactive image
ChemSpider	4938651
ECHA InfoCard	100.028.474
E number	E203 (preservatives)
PubChem	6433506
InChI InChI=1/2C6H8O2.Ca/c2*1-2-3-4-5-6(7)8;/h2*2-5H,1H3,(H,7,8);/q;;+2/p-2/b2*3-2+,5-4+; Key: MCFVRESNTICQSJ-AXDCTYHGBC
SMILES [Ca+2].O=C([O-])\C=C\C=C\C.[O-]C(=O)\C=C\C=C\C
Properties
Chemical formula	C12H14CaO4
Molar mass	262.31516 g/mol
Solubility in water	very slightly soluble
Solubility	very slightly soluble in organic solvents, fats and oils
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Calcium sorbate is the calcium salt of sorbic acid. Calcium sorbate is a polyunsaturated fatty acid salt.

It is a commonly used food preservative; its E number is E203.