Shelf life (days): 1460.0
Formulation: A crystalline solid
Formal Name: 4-hydroxy-a1-[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol, 1-hydroxy-2-naphthalenecarboxylic acid
Purity: ≥98%
Formula Markup: C25H37NO4 / C11H8O3
Formula Weight: 603.8
CAS Number: 94749-08-3
Notes: Salmeterol is a long-acting β2-adrenergic receptor agonist (β2-AR; EC50s = 0.79, 63.1, and 9.4 nM for β2-, β1-, and β3-ARs, respectively).{25442} It inhibits electrically-stimulated contraction of isolated guinea pig trachea strips (EC50 = 2.51 nM) and histamine-induced bronchoconstriction in guinea pigs via aerosol administration of doses ranging from 0.12 to 12 mM.{25442,42567} Salmeterol binds to an exosite domain of β2-adrenergic receptors, producing a slow onset of action and prolonged activation.{25994} Formulations containing salmeterol have been used in the treatment of asthma, including exercise-induced asthma, and chronic obstructive pulmonary disease.