3,4-Dihydro NaratriptanNaratriptan IMP N-Methyl-3-(1,2,3,6-tetrahydro-1-methyl-4-pyridinyl)-1H-indole-5-ethanesulfonamide

1-(2-(N-Methylsulfamoyl)ethyl) naratriptanNaratriptan IMP N-methyl-2-[3-(1-methylpiperidin-4-yl)-1-[2-(methylsulfamoyl)ethyl]indol-5-yl]ethanesulfonamide

Naratriptan Impurity 3Naratriptan IMP 1-methyl-4-(5-(2-(N-methylsulfamoyl)ethyl)-1H-indol-3-yl)hexahydro-1-pyridiniumolate

Nebivolol Hydrochloride Secondary StandardNebivolol Hydrochloride API R-65824, rel-(aR,a'R,2R,2'S)-a,a'-[iminobis(methylene)]bis[6-fluoro-3,4-dihydro-2H-1-benzopyran-2-methanol] hydrochloride

Nicotinic Acid Secondary StandardNicotine API 3-Picolinic Acid

4-HydroxybenzoylhydrazineNifuroxazide IMP 4-Hydroxybenzoic hydrazide

Montelukast MethylketoneMontelukast IMP 1-[[[(1R)-3-(2-acetylphenyl)-1-[3-[(E)-2-(7-chloroquinolin-2- yl)ethenyl]phenyl] propyl]sulfanyl]methyl]cyclopropyl]acetic Acid

cis-MontelukastMontelukast IMP [1-[[[(1R)-1-[3-[(Z)-2-(7-Chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl) phenyl]propyl]sulfanyl]methyl]cyclopropyl]acetic Acid

Montelukast Methoxycarbonyl AnalogMontelukast IMP 2-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(methoxycarbonyl)phenyl]propyl]sulfanyl]methyl]cyclopropyl]acetic Acid

Montelukast alpha-Hydroxy AnalogMontelukast IMP (2RS)-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropyl] (hydroxy) acetic Acid