BiomarkerOf lemon (whole, raw) oregano (ground) 6-O-methylated flavonoids hispidulin 24812440 FOBI:050313 5281628 IHFBPDAQLQOCBX-UHFFFAOYSA-N 10552853 C10058 InChI=1S/C16H12O6/c1-21-16-11(19)7-13-14(15(16)20)10(18)6-12(22-13)8-2-4-9(17)5-3-8/h2-7,17,19-20H,1H3 HMDB0128581 4444947