compounds 9, 13 and 70 with m/z at 315.1072
have demonstrated identical molecular formula C14H19O8. Information
from the MS/MS spectra showed fragmented ions at m/z
151.0400 and 109.0304, which are consistent with the appearance
of vanillin and the loss of CO2. It is to say that vanillin was previously
described in bottle gourd (Cucurbitaceae)