USP-Standards from the United States Pharmacopeia

(4-Amino-1,3,5-triazin-2(1H)-one)

(1-O-Acetyl-2,3,5-tri-O-benzoyl-Beta-D-ribofuranose)

(1-beta-D-Ribofuranosyl-3-guanylurea picrate)

(9-Deoxo-9a-aza-9a-homoerythromycin A)

(6-[(1-methyl-4-nitro-1H-imidazol-5-yl)thio]-9H-purin-2-amine)

(1-Methyl-4-nitro-1H-imidazol-5-amine)

(3'-N-{[4-(Acetylamino)phenyl]sulfonyl}-3'-N-demethylazithromycin)

(3'-N-Demethyl-3'-N-formylazithromycin)

((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-Ethyl-3,4,10,13-tetrahydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-dimethylamino-Beta-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one)

(N'-(1-methylazepan-4-yl)benzohydrazide hydrochloride)

(4-(4-chlorobenzyl)phthalazin-1(2H)-one)

(3-(4-chlorobenzylidene)isobenzofuran-1(3H)-one)