Sodium dehydroacetate

Sodium dehydroacetate
	Chemical structure of sodium dehydroacetate
Names
	Other names E266
Identifiers
CAS Number	4418-26-2 ;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.022.347
E number	E266 (preservatives)
PubChem CID	44135708;
UNII	8W46YN971G ;
CompTox Dashboard (EPA)	DTXSID7026029 ;
	InChI InChI=1S/C8H8O4.Na/c1-4-3-6(10)7(5(2)9)8(11)12-4;/h3,9H,1-2H3;/q;+1/p-1;
	SMILES CC1=CC(=O)C(=C(C)[O-])C(=O)O1.[Na+];
Properties
Chemical formula	C8H7NaO4
Molar mass	190.130 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Sodium dehydroacetate is a compound with the formula Na(CH₃C₅HO(O₂)(CH₃)CO). It is the sodium salt of dehydroacetic acid. It is used as a preservative in food, cosmetics and personal care products such as shower gels, which is highly effective against a broad range of bacteria even at low concentrations such as 0.075 g/kg in meat. Its use is regulated in China, Japan and the USA, thus it can only be used in certain foods such as picked vegetables, fermented soy, compound seasonings and pickled mushrooms in China, and only peeled pumpkins in the US at 65 parts per million. It is not approved for use in the EU. It adds an acetic odor to food which can be mitigated using flavorings. It can also be used in bread and pastries. It is highly effective when applied to oranges.