Trans-p-Coumaric-d6 Acid is deuterium labelled trans-p-Coumaric Acid (C755390). Trans-p-Coumaric Acid is the E-isomer of p-Coumaric Acid (C755365), a hydroxy derivative of Cinnamic Acid with antioxidant properties. p-Coumaric Acid is a major component of lignocellulose. Studies suggest that p-Coumaric Acid may reduce the risk of cancer by reducing the formation of carcinogenic nitrosamines.