α-Vetivone is an organic compound that is classified as a sesquiterpene (derived from three isoprene units). It is a major component of the oil of vetiver, which is used to prepare certain high value perfumes.

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α-Vetivone

Names
IUPAC name 4α,5α-Eremophila-1(10),7(11)-dien-2-one
Systematic IUPAC name (4R,4aS)-4,4a-Dimethyl-6-(propan-2-ylidene)-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one
Identifiers
CAS Number	15764-04-2 Y
3D model (JSmol)	Interactive image
ChemSpider	390847
ECHA InfoCard	100.036.217
PubChem CID	442405
UNII	WA62V77MMV Y
CompTox Dashboard (EPA)	DTXSID60884848
InChI InChI=1S/C15H22O/c1-10(2)12-5-6-13-8-14(16)7-11(3)15(13,4)9-12/h8,11H,5-7,9H2,1-4H3/t11-,15+/m1/s1 Key: NIIPDXITZPFFTE-ABAIWWIYSA-N InChI=1/C15H22O/c1-10(2)12-5-6-13-8-14(16)7-11(3)15(13,4)9-12/h8,11H,5-7,9H2,1-4H3/t11-,15+/m1/s1 Key: NIIPDXITZPFFTE-ABAIWWIYBZ
SMILES O=C2\C=C1\CC/C(=C(/C)C)C[C@@]1(C)[C@H](C)C2
Properties
Chemical formula	C15H22O
Molar mass	218.335
Appearance	colourless solid
Density	0.962 g/mL
Boiling point	270.5 °C (518.9 °F; 543.6 K)
Solubility in water	practically insoluble
Solubility in ethanol	soluble
Solubility in diethyl ether	soluble
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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α-Vetivone is isolated by steam distillation of the roots of the grass Vetiveria zizanioides. Two other components of this distillate are the sesquiterpenes khusimol and β-vetivone shown below.^[1]

• Structure of khusimol, another fragrant component of the oil of vetiver.
• Structure of β-vetivone, another fragrant component of the oil of vetiver.