preferred_name: 2 (R)-3-hydroxybutanoate + H(+) => (3R)-hydroxybutanoate dimer + H2O
preferred_name_lc: 2 (r)-3-hydroxybutanoate + h(+) => (3r)-hydroxybutanoate dimer + h2o
label: 2 (R)-3-hydroxybutanoate + H(+) => (3R)-hydroxybutanoate dimer + H2O
label_lc: 2 (r)-3-hydroxybutanoate + h(+) => (3r)-hydroxybutanoate dimer + h2o