5'-Hydroxyphenyl carvedilol-d5
5'-Hydroxyphenyl carvedilol-d5 (3-(2-((3-((9H-carbazol-4-yl)oxy)-2-hydroxypropyl)amino)ethoxy)-4-methoxyphenol-d5) is the deuterium labeled 3-(2-((3-((9H-carbazol-4-yl)oxy)-2-hydroxypropyl)amino)ethoxy)-4-methoxyphenol (HY-W334664).