has role independent continuant noradrenaline(1+) (R)-noradrenaline (R)-noradrenaline(1+) (R)-noradrenaline cation An organic cation that is the conjugate acid of (R)-noradrenaline, obtained by protonation of the priamry amino group; major species at pH 7.3. (R)-noradrenaline (R)-noradrenalinium cation CHEBI:72587 (2R)-2-(3,4-dihydroxyphenyl)-2-hydroxyethanaminium PDBeChem:E5E (R)-noradrenalinium(1+) human metabolite