CAS 51-41-2: norepinephrine

Norepinephrine is a hormone and neurotransmitter that is released by the adrenal medulla. It has vasoconstrictor and bronchodilator effects, as well as other actions such as increasing metabolic rate and blood pressure. Norepinephrine binds to β-adrenergic receptors on cells, causing them to release cyclic adenosine monophosphate (cAMP) in response. cAMP activates protein kinase A, which phosphorylates proteins leading to increased cell activity. The binding of norepinephrine to β-adrenergic receptors also leads to the activation of voltage-dependent calcium channels and increased calcium ion permeability. This increase in intracellular calcium ions leads to muscle contraction and relaxation of smooth muscle in the lungs, uterus, stomach, intestines and bladder. Norepinephrine can be used in a luminescence immunoassay for the measurement of noradrenaline levels in human serum or plasma samples.

Adrenaline impurity standard

Norepinephrine (Levophed) can stimulate apoptosis in adult rat ventricular myocytes by activation of the β-adrenergic pathway.

L-Noradrenaline serves as an adrenergic neurotransmitter. It acts as demethylated precursor of epinephrine (adrenaline). It is also used to treat people having low blood pressure, as a sympathomimetic drug to treat people in vasodilatory shock states such as septic shock and neurogenic shock. Further, it is used in the preparation of1,2,3,4-tetrahydro-4,6,7-isoquinolinetriol hydrochloride. In addition to this, it is used in the treatment of hypotension, depression, schizophrenia and attention hyperactivity disorders. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications L-Noradrenaline is an adrenergic neurotransmitter. Also, it is recommended as first-line vasopressor therapy. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Auchet, T., et al.: Ann. Intensive Care, 7, 1-9 (2017)