4-hydroxy-2-oxohexanoate => (2Z,4Z)-2-hydroxyhexa-2,4-dienoate + H2O
4-hydroxy-2-oxohexanoate => (2z,4z)-2-hydroxyhexa-2,4-dienoate + h2o
4-hydroxy-2-oxohexanoate => (2Z,4Z)-2-hydroxyhexa-2,4-dienoate + H2O
4-hydroxy-2-oxohexanoate => (2z,4z)-2-hydroxyhexa-2,4-dienoate + h2o