Formulation: A solid
Formal Name: 1-[[[(1R)-1-[3-[(1E)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-[1-hydroxy-1-(methyl-d3)ethyl-2,2,2-d3]phenyl]propyl]thio]methyl]-cyclopropaneacetic acid, monosodium salt
Purity: ≥99% deuterated forms (d1-d6)
Formula Markup: C35H29ClD6NO3S • Na
Formula Weight: 614,2
Shelf life (days): 1460
CAS Number: 2673270-26-1
Notes: Montelukast-d6 (sodium salt) is intended for use as an internal standard for the quantification of montelukast (sodium salt) (Item No. 10008318) by GC- or LC-MS. Montelukast is a cysteinyl leukotriene 1 (CysLT1) receptor antagonist (IC50 = 4.9 nM in HEK293 cell membranes expressing the human receptor).{14081} It is selective for CysLT1 over CysLT2 receptors (IC50 = >10,000 nM in COS-7 cell membranes expressing the human receptor).{8519} Montelukast inhibits bronchoconstriction induced by leukotriene D4 (LTD4; Item No. 20310) in anesthetized guinea pigs (ED50 = 69 nmol/kg, p.o.).{10911} It inhibits ovalbumin-induced airway hyperresponsiveness and increases in the number of total cells and eosinophils in bronchoalveolar lavage fluid (BALF) in a mouse model of allergic asthma when administered at doses of 3 and 10 mg/kg.{11231} Formulations containing montelukast have been used in the treatment of asthma, allergic rhinitis, and exercise-induced bronchoconstriction.