Purification of montelukast

Details Purification of montelukast Purification of montelukast

2006-07-05

2010-10-12

Seaman, D. Margaret (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S153000

Reexamination Certificate

active

07812168

ABSTRACT:
The present invention provides methods of purifying montelukast, a new isolated impurity of montelukast, method for its isolation, and method of using montelukast impurity as a reference marker and a reference standard.

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