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