phenol-containing compound catabolic process eugenol metabolic process eugenol catabolic process 4-allyl-2-methoxyphenol catabolism The chemical reactions and pathways resulting in the breakdown of eugenol, a colorless, aromatic, liquid hydrocarbon (C10H12O2) found in clove oil. GO:0042856 biological_process eugenic acid catabolism eugenol catabolism eugenol degradation eugenol breakdown 4-allyl-2-methoxyphenol catabolic process eugenic acid catabolic process phenylpropanoid catabolic process olefinic compound catabolic process ether catabolic process