preferred_name: 2,6-dioxo-6-phenylhexa-3-enoate => 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate
preferred_name_lc: 2,6-dioxo-6-phenylhexa-3-enoate => 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate
label: 2,6-dioxo-6-phenylhexa-3-enoate => 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate
label_lc: 2,6-dioxo-6-phenylhexa-3-enoate => 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate