Dehydroacetic acid

Dehydroacetic acid
Names
	Preferred IUPAC name 3-Acetyl-2-hydroxy-6-methyl-4H-pyran-4-one
	Other names Biocide 470F; Methylacetopyronone
Identifiers
CAS Number	520-45-6 ;
3D model (JSmol)	Interactive image;
Abbreviations	DHAA
ChEBI	CHEBI:137426;
ChEMBL	ChEMBL284127 ;
ChemSpider	10177 ;
ECHA InfoCard	100.007.541
EC Number	208-293-9;
E number	E265 (preservatives)
MeSH	dehydroacetic+acid
PubChem CID	122903;
UNII	2KAG279R6R ;
CompTox Dashboard (EPA)	DTXSID801015814 DTXSID6020014, DTXSID801015814 ;
	InChI InChI=1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,11H,1-2H3 Key: JEQRBTDTEKWZBW-UHFFFAOYSA-N ;
	SMILES CC(=O)C1=C(O)OC(C)=CC1=O;
Properties
Chemical formula	C8H8O4
Molar mass	168.148 g·mol−1
Appearance	White crystals
Melting point	109 °C; 228 °F; 382 K
Boiling point	270 °C; 518 °F; 543 K
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302
Precautionary statements	P264, P270, P301+P312, P330, P501
NFPA 704 (fire diamond)	1 1 0
	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

Dehydroacetic acid is an organic compound which has several industrial applications. The compound is classified as a pyrone derivative. It presents as an odorless, colorless to white crystalline powder, almost insoluble in water and moderately soluble in most organic solvents.

Names

Preferred IUPAC name 3-Acetyl-2-hydroxy-6-methyl-4H-pyran-4-one
Other names Biocide 470F Methylacetopyronone
Identifiers
CAS Number	520-45-6^Y
3D model (JSmol)	Interactive image
Abbreviations	DHAA
ChEBI	CHEBI:137426
ChEMBL	ChEMBL284127^N
ChemSpider	10177^Y
ECHA InfoCard	100.007.541
EC Number	208-293-9
E number	E265 (preservatives)
MeSH	dehydroacetic+acid
PubChem CID	122903
UNII	2KAG279R6R^Y
CompTox Dashboard (EPA)	DTXSID801015814 DTXSID6020014, DTXSID801015814
InChI InChI=1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,11H,1-2H3^N Key: JEQRBTDTEKWZBW-UHFFFAOYSA-N^N
SMILES CC(=O)C1=C(O)OC(C)=CC1=O
Properties
Chemical formula	C₈H₈O₄
Molar mass	168.148 g·mol⁻¹
Appearance	White crystals
Melting point	109 °C; 228 °F; 382 K
Boiling point	270 °C; 518 °F; 543 K
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302
Precautionary statements	P264, P270, P301+P312, P330, P501
NFPA 704 (fire diamond)	1 1 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references