|
Montelukast (sodium salt) Cayman Chemical Item Number 10008318 Description The cysteinyl leukotrienes (CysLTs), LTC4 and LTD4, are potent mediators of asthma and hypersensitivity. They induce bronchoconstriction, increase microvascular permeability, and are vasoconstrictors of coronary arteries. Their biological effects are transduced by a pair of G protein-coupled receptors, CysLT1 and CysLT2.1↗,2↗,3↗ Montelukast (sodium salt) is a potent, selective CysLT1 receptor antagonist sold under the trade name Singulair for the treatment of asthma as well as for the symptoms associated with allergic rhinitis.4↗,5↗,6↗,7↗ It binds to the human CysLT1 receptor with an IC50 of less than 5 nM with no appreciable binding to the CysLT2 receptor.1↗,2↗,3↗ Synonyms Singulair® Formal Name 1-[[[(1R)-1-[3-(1E)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]-methyl]-cyclopropaneacetic acid, monosodium salt CAS Number 151767-02-1 Molecular Formula C35H35ClNO3S · Na Formula Weight 608.2 Formulation A crystalline solid Purity ≥98% λmax 212, 284, 328, 345, 359 nm Stability 2 years Storage -20°C Shipping Room temperature in continental US; may vary elsewhere SMILES CC(C)(O)C(C=CC=C1)=C1CC[C@H](SCC2(CC2)CC([O-])=O)C3=CC(/C=C/C4=NC5=CC(Cl)=CC=C5C=C4)=CC=C3.[Na+] InCHI Code 1S/C35H36ClNO3S.Na/c1-34(2,40)30-9-4-3-7-25(30)13-17-32(41-23-35(18-19-35)22-33(38)39)27-8-5-6-24(20-27)10-15-29-16-12-26-11-14-28(36)21-31(26)37-29;/h3-12,14-16,20-21,32,40H,13,17-19,22-23H2,1-2H3,(H,38,39);/q;+1/p-1/b15-10+;/t32-;/m0./s1 InCHI Key LBFBRXGCXUHRJY-YBGTYPRZSA-M |