Synephrine (hydrochloride) (Standard) is the analytical standard of Synephrine (hydrochloride). This product is intended for research and analytical applications. Synephrine (Oxedrine) hydrochloride, an alkaloid, is an alpha-adrenergic and beta-adrenergic agonist derived from the Citrus aurantium. Synephrine hydrochloride is a sympathomimetic compound and can be used for weight loss[1][2].