Synephrine HCL (CAS: 5985-28-4) is the hydrochloride salt form of the natural alkaloid synephrine. As a sympathomimetic amine, it is primarily found in citrus plants (e.g., bitter orange, Citrus aurantium) and is a common ingredient in weight loss and energy supplements. Its structure resembles epinephrine but selectively targets β-3 adrenergic receptors, offering both lipolytic effects and cardiovascular safety advantages.

Product Name: Synephrine HCL

IUPAC Name: (R)-4-[1-Hydroxy-2-(methylamino)ethyl]phenol hydrochloride

CAS No.​: 5985-28-4

Molecular Formula: C₉H₁₃NO₂·HCl