preferred_name: 2',4'-dihydroxychalcone => (2S)-7-hydroxyflavanone
preferred_name_lc: 2',4'-dihydroxychalcone => (2s)-7-hydroxyflavanone
label: 2',4'-dihydroxychalcone => (2S)-7-hydroxyflavanone
label_lc: 2',4'-dihydroxychalcone => (2s)-7-hydroxyflavanone