Table 1: Chemical composition of essential oils from herbs and roots of Coryza canadensis.

Compoundsa% in samplesRIbIdentification
HerbsRoots 1Roots 2

2E-hexanal0.1873c
α-pinene0.3936c, d
Sabinenetr978c, d
β-pinene2.81.3985c, d
Myrcene1.5992c
p-cymenetr1020c, d
limonene79.21.01038c, d
trans-ocimene0.91050c
2,5-dimethyl styrene0.11101c
E,E-cosmene0.41132c
cis-verbenol0.51142c
trans-sabinol0.41147c
2-allyl-phenol0.21199c
Myrtenol0.31208c
cis-p-mentha-1(7),8-dien-2-ol0.81232c
trans-chrysanthenyl acetate0.31245c
Modheph-2-ene0.11389c
β-caryophyllene0.21427c, d
α-trans-bergamotene2.9tr1439c
α-curcumene +amorpha-4,7(11)-diene1.81488c
11-αH-himachala-1,4-diene0.21495c
4E,8Z-matricaria lactone0.71490c, d
δ-cadinene0.21526
8Z-2,3-dihydromatricaria ester1.03.32.61537c
2E,8Z-matricaria ester0.31.90.91540c
2Z,8Z-matricaria ester2.188.293.91551c
4Z,8Z-matricaria lactonetr2.32.51560c
Germacrene B0.21567c
2E,8E-matricaria ester0.71597c
Spathulenol0.31581
ar-turmerone0.11590c
β-copaen-4-α-ol0.41595c
Salvia-4(14)-en-1-one0.21610c

Total98.098.699.9

aCompounds listed in sequence of elution from a CB-5 MS column.
bKovats retention indices calculated against C9 to C24  n-alkanes on a CB-5 MS column.
cComparison of mass spectra with MS libraries and retention indices.
dComparison with authentic compound.