Peak    No.a   RI b Compounds Formula % Area c A B C Hydrocarbons 1 1031 α-Pinene C10H16 0.07 0.02 0.01 2 1121 β -Pinene C10H16 0.06 0.02 0.02 3 1166 β-Myrcene C10H16 0.69 0.32 0.07 4 1213 Limonene C10H16 0.48 0.23 0.16 5 1237 trans-β-Ocimene C10H16 0.32 0.20 NA 6 1254 cis-β-Ocimene C10H16 0.61 0.40 NA 7 1278 p-Cymene C10H14 0.08 0.05 0.05 8 1292 4-Carene C10H16 0.17 0.00 NA 17 1617 β-Elemene C15H24 0.24 0.23 0.14 18 1624 Caryophyllene C15H24 2.71 2.22 0.18 20 1687 cis-β-Farnesene C15H24 0.05 0.09 NA 23 1730 Germacrene D C15H24 2.79 2.18 NA 28 2169 Ledane C15H26 0.18 NA NA 30 2276 Guaiene C15H24 0.11 0.30 NA Oxides 11 1447 Linalool, epoxydihydro- C10H18O2 0.11 0.09 0.90 12 1476 Linalool oxide C10H18O2 NA NA 0.99 32 2368 Sclareoloxide C18H30O 0.52 0.97 0.23 Alcohols 9 1380 3-Hexen-1-ol C6H12O 0.06 0.00 0.03 10 1440 1-Octen-3-ol C8H16O 0.04 0.05 0.07 13 1538 β-Linalool C10H18O 22.68 20.98 21.05 16 1608 4-Terpeneol C10H18O 0.08 0.09 0.04 21 1699 α-Terpineol C10H18O 6.72 5.68 5.18 25 1795 cis-Geraniol C10H18O 0.99 1.07 0.48 26 1839 trans-Geraniol C10H18O 2.02 2.47 0.91 27 1927 2,6-Dimethyl-3,7-octadiene-2,6-diol C10H18O2 0.09 0.11 0.65 29 2181 β-Spathulenol C10H18O 0.22 0.33 NA 31 2306 β-Eudesmol C15H26O 0.15 0.44 0.09 Esters 14 1563 Linalyl acetate C12H20O2 46.43 53.85 51.22 15 1595 Linalyl formate C11H18O2 0.46 0.35 0.08 19 1672 Geranyl formate C11H18O2 0.06 0.10 0.18 22 1726 cis-Geranyl acetate C12H20O2 2.11 1.78 2.17 24 1756 trans-Geranyl acetate C12H20O2 4.80 4.00 3.95 Unknowns 3.89 1.40 11.16

a Peak number labeled on TIC b Retention index relative to C8-C20 n-alkanes on Rtx®-Wax column cA: control sample; B: 2hr sunlight treated sample; C:  H2O added and sunlight treated 2hr sample

Table 3: Chemical compositional changes and relative intensity (%) of clary sage EO in photosensitive experiment analysis by GC-MS.