preferred_name: 3-hydroxy-3-methyl-2-oxobutanoate => (2S)-2-acetolactate
preferred_name_lc: 3-hydroxy-3-methyl-2-oxobutanoate => (2s)-2-acetolactate
label: 3-hydroxy-3-methyl-2-oxobutanoate => (2S)-2-acetolactate
label_lc: 3-hydroxy-3-methyl-2-oxobutanoate => (2s)-2-acetolactate