4’-Hydroxy Diclofenac-d4 Acyl Glucuronide is deuterium labeled 4’-Hydroxy Diclofenac Acyl Glucuronide. 4’-Hydroxy Diclofenac Acyl Glucuronide is a related compound of 4’-Hydroxy Diclofenac (H825225), which is a metabolite of Diclofenac (D436450), a nonsteroidal anti-inflammatory compound and a cyclooxygenase (COX) inhibitor (1,2,3). Diclofenac exhibits anti-inflammatory, analgesic, and antipyretic properties.