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Dehydroacetic acid

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Dehydroacetic acid^[1]
Names

IUPAC name 3-acetyl-2-hydroxy-6-methyl-4H-pyran-4-one
Other names Methylacetopyronone Biocide 470F
Identifiers
CAS Number	520-45-6^N
3D model (JSmol)	Interactive image
ChemSpider	109553^Y
ECHA InfoCard	100.007.541
E number	E265 (preservatives)
PubChem CID	10623
UNII	2KAG279R6R^Y
CompTox Dashboard (EPA)	DTXSID801015814 DTXSID6020014, DTXSID801015814
SMILES O=C(C)C=1C(=O)C=C(C)OC=1O
Properties
Chemical formula	C₈H₈O₄
Molar mass	168.14672
Appearance	White crystalline powder
Melting point	109-111 °C (sublimes)
Boiling point	269.9 °C (517.8 °F; 543.0 K)
Solubility in water	<0.1%
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references

Dehydroacetic acid is a pyrone derivative used mostly as a fungicide and bactericide. It is used to reduce pickle bloating as a preservative for squash and strawberries.^[2]
Also used in antienzyme toothpastes.

The sodium salt, sodium dehydroacetate, is often used in place of dehydroacetic acid because of its greater solubility in water.

Industrially, it is also used as a plasticizer in a variety of synthetic resins.^[1]

References

^ ^a ^b Merck Index, 11th Edition, 2855

^ Handbook of Biocide and Preservative Use, Harold William Rossmoore, p. 341 ISBN 0751402125

This article about a ketone is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Dehydroacetic_acid&oldid=427328613" Categories: ●Fungicides ●4-Pyrones ●Alcohols ●Ketone stubs Hidden categories: ●Articles without InChI source ●Articles without EBI source ●Articles without KEGG source ●Articles with changed CASNo identifier ●Chembox and Drugbox articles with a broken CheMoBot template ●ECHA InfoCard ID from Wikidata ●E number from Wikidata ●Articles containing unverified chemical infoboxes ●Chembox image size set ●Pages using Chembox with unknown parameters ●Articles with short description ●Short description matches Wikidata ●All stub articles ●This page was last edited on 4 May 2011, at 00:49 (UTC). ●This version of the page has been revised. Besides normal editing, the reason for revision may have been that this version contains factual inaccuracies, vandalism, or material not compatible with the Creative Commons Attribution-ShareAlike License. ●Privacy policy ●About Wikipedia ●Disclaimers ●Contact Wikipedia ●Code of Conduct ●Developers ●Statistics ●Cookie statement ●Mobile view