preferred_name: propanal + pyruvate => (S)-4-hydroxy-2-oxohexanoate
preferred_name_lc: propanal + pyruvate => (s)-4-hydroxy-2-oxohexanoate
label: propanal + pyruvate => (S)-4-hydroxy-2-oxohexanoate
label_lc: propanal + pyruvate => (s)-4-hydroxy-2-oxohexanoate