Not official USP-NF text
MONTELUKAST SODIUM
PF	LGS#	Brand	Type of Test	Additional Information
36(1)	L11	ZORBAX SB Phenyl	Assay and Organic Impurities	4.6 mm x 5 cm, 1.8 µm.
36(1)	L41	Chiral AGP	Enantiomeric purity	4.0 mm x 15 cm, 5 µm.