(1R,4R)-4,6-dihydroxy-1-(hydroxymethyl)-2-methyl-1,2,3,4-tetrahydroisoquinolinium chloride
Phenylephrine (1R,4R)-4,6-dihydroxy-1-(hydroxymethyl)-2-methyl-1,2,3,4-tetrahydroisoquinolinium chloride