7-Methoxy-4-methyl-2-oxo-N-[(5-phenyl-1,2,4-oxadiazol-3-yl)methyl]-2H-1-benzopyran-6-propanamide-d5 is the deuterium labelled form of 7-Methoxy-4-methyl-2-oxo-N-[(5-phenyl-1,2,4-oxadiazol-3-yl)methyl]-2H-1-benzopyran-6-propanamide (M329995), which is synthesized from 2,4-Dihydroxybenzaldehyde (D450995) that is a Resorcinol (R144700) derivative with potent antioxidative and antibacterial activity.