for the following products
(2R,3R,4S)-3-Acetamido-4-guanidino-2-((1R,2R)-1,2,3-trihydroxypropyl)-3,4-dihydro-2H-pyran-6-carboxylic acid | D-Glycero-D-galacto-Non-2-enonicacid, 5-(acetylamino)-4-[(aminoiminomethyl)amino]-2,6-anhydro-3,4,5-trideoxy- | Zanamivir for assay | Zanamivir hydrate and Zanamivir
