Menthofuran

Menthofuran
Names
	IUPAC name 3,6-Dimethyl-4,5,6,7-tetrahydro-1-benzofuran
Identifiers
CAS Number	494-90-6 ; 17957-94-7 (R) ; 80183-38-6 (S) ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:50542;
ChemSpider	292309;
ECHA InfoCard	100.007.087
PubChem CID	329983;
UNII	LK024V9U3C ; 9N0IS8189W (R) ; OS9602CGD2 (S) ;
CompTox Dashboard (EPA)	DTXSID9025534 ;
	InChI InChI=1S/C10H14O/c1-7-3-4-9-8(2)6-11-10(9)5-7/h6-7H,3-5H2,1-2H3 Key: YGWKXXYGDYYFJU-UHFFFAOYSA-N; InChI=1/C10H14O/c1-7-3-4-9-8(2)6-11-10(9)5-7/h6-7H,3-5H2,1-2H3 Key: YGWKXXYGDYYFJU-UHFFFAOYAW;
	SMILES o1c2c(c(c1)C)CCC(C2)C;
Properties
Chemical formula	C10H14O
Molar mass	150.221 g·mol−1
Boiling point	208
Hazards
Flash point	86
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Menthofuran is an organic compound found in a variety of essential oils including that of pennyroyal (Mentha pulegium). It is highly toxic and believed to be the primary toxin in pennyroyal responsible for its potentially fatal effects. After ingestion of menthofuran, it is metabolically activated to chemically reactive intermediates that are hepatotoxic.