Dihydro montelukast is a potential impurity found in commercial montelukast preparations. Montelukast (sodium salt) is a potent and selective cysteinyl leukotriene 1 (CysLT1) receptor antagonist. Formulations containing montelukast are used for the treatment of asthma as well as for the symptoms associated with allergic rhinitis.

142147-67-9

C35H38ClNO3S

588.2

Dihydro Montelukast

Chloroform:Soluble
Powder: -20°C for 3 years
In solvent: -80°C for 2 years