Compound as reactive (1)
(E)-2,4-dihydroxycinnamate → (Z)-2,4-dihydroxycinnamate
Compound as product (1)
4-coumarate → (E)-2,4-dihydroxycinnamate
Reversible reaction (1)
(E)-2,4-dihydroxycinnamate + H+ ↔ H2O + umbelliferone