5-Hydroxymaltol

5-Hydroxymaltol, a derivative of maltol, is a substance that can be found in Penicillium echinulatum.[1] It is also found in toasted oak[2] and also in honeys from blue gum (Eucalyptus leucoxylon) and yellow box (Eucalyptus melliodora).[3]

5-Hydroxymaltol

Names
IUPAC name 3,5-dihydroxy-2-methylpyran-4-one
Other names 3,5-Dihydroxy-2-methyl-4H-pyran-4-one
Identifiers
CAS Number	1073-96-7^Y
3D model (JSmol)	Interactive image
ChemSpider	63795^Y
ECHA InfoCard	100.258.796
PubChem CID	70627
UNII	DBQ2Q3Z4FR^Y
CompTox Dashboard (EPA)	DTXSID50148002
InChI InChI=1S/C6H6O4/c1-3-5(8)6(9)4(7)2-10-3/h2,7-8H,1H3^Y Key: SSSNQLHKSUJJTE-UHFFFAOYSA-N^Y
SMILES Cc1occ(O)c(=O)c1O
Properties
Chemical formula	C6H6O4
Molar mass	142.110 g·mol^−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

References

1. Anderson, H.A.; Bracewell, J.M.; Fraser, A.R.; Jones, D.; Robertson, G.W.; Russell, J.D. (December 1988). "5-Hydroxymaltol and mycophenolic acid, secondary metabolites from Penicillium echinulatum". Transactions of the British Mycological Society. 91 (4): 649–651. doi:10.1016/S0007-1536(88)80040-8.
2. Cutzach, Isabelle; Chatonnet, Pascal; Henry, Robert; Dubourdieu, Denis (June 1997). "Identification of Volatile Compounds with a "Toasty" Aroma in Heated Oak Used in Barrelmaking". Journal of Agricultural and Food Chemistry. 45 (6): 2217–2224. doi:10.1021/jf960947d.
3. D'Arcy, Bruce R.; Rintoul, Gavin B.; Rowland, Catherine Y.; Blackman, Adrian J. (1997). "Composition of Australian Honey Extractives. 1. Norisoprenoids, Monoterpenes, and Other Natural Volatiles from Blue Gum (Eucalyptus leucoxylon) and Yellow Box (Eucalyptus melliodora) Honeys". Journal of Agricultural and Food Chemistry. 45 (5): 1834–1843. doi:10.1021/jf960625+.