. 2011 Oct 17;79(4):779–791. doi: 10.3797/scipharm.1109-11

Tab. 1.

Principal constituents in the essential oil of clove bud dried fruits from Eugenia caryophyllus

Compound	tR^a (min)	IR^b	Percent^c
Eugenol	34.35	1363	60.5
β-caryophyllene	37.09	1438	7.5
α-humulene	38.26	1472	1.7
Eugenyl acetate	39.82	1520	7.0

Retention time on DB-5 column;

Kovats Retention Indices;

Percents are reported as gas chromatography areas without correction factor.