preferred_name: acetone + 3-oxopropanoate => (S)-3-hydroxy-5-oxohexanoate
preferred_name_lc: acetone + 3-oxopropanoate => (s)-3-hydroxy-5-oxohexanoate
label: acetone + 3-oxopropanoate => (S)-3-hydroxy-5-oxohexanoate
label_lc: acetone + 3-oxopropanoate => (s)-3-hydroxy-5-oxohexanoate