BiomarkerOf Catechols coffee based beverage product coffee (liquid drink) cocoa beer 4-ethylcatechol FOBI:050238 HFLGBNBLMBSXEM-UHFFFAOYSA-N InChI=1S/C8H10O2/c1-2-6-3-4-7(9)8(10)5-6/h3-5,9-10H,2H2,1H3 70761 15578444 HMDB0040174 16881674