(2Z,4Z)-2-hydroxyhepta-2,4-diene-1,7-dioate <=> (4Z)-2-oxohept-4-enedioate
(2z,4z)-2-hydroxyhepta-2,4-diene-1,7-dioate <=> (4z)-2-oxohept-4-enedioate
(2Z,4Z)-2-hydroxyhepta-2,4-diene-1,7-dioate <=> (4Z)-2-oxohept-4-enedioate
(2z,4z)-2-hydroxyhepta-2,4-diene-1,7-dioate <=> (4z)-2-oxohept-4-enedioate