Substituted β-hydroxyamphetamine

Substituted β-hydroxyamphetamines, or simply β-hydroxyamphetamines, also known as phenylisopropanolamines, phenylpropanolamines, norephedrines, or cathinols, are derivatives of β-hydroxyamphetamine with one or more chemical substituents. They are substituted phenethylamines, phenylethanolamines (β-hydroxyphenethylamines), and amphetamines (α-methylphenethylamines), and are closely related to but distinct from the substituted cathinones (β-ketoamphetamines).

Source: Wikipedia — Substituted β-hydroxyamphetamine (CC BY-SA 4.0)