(S)-(+)-4-NITRO-7-(3-AMINOPYRROLIDIN-1-YL)-2,1,3-BENZOXADIAZOLE;(S)-(+)-4-NITRO-7-(3-AMINOPYRROLIDIN-1-YL)BENZOFURAZAN;(S)-(+)-NBD-APY;(S)-NBD-APY;3S-(4-(3-AMINOPYRROLIDIN-1-YL))-7-NITROBENZ-2-OXA-1,3-DIAZOLE;HPLClabelingreagentfore.e.determination;(S)-(+)-NBD-APY [=(S)-(+)-4-NITRO-7-(3-AMINOPYRROLIDIN-1-YL)-2,1,3-BENZOXADIAZOLE];(S)-(+)-NBD-APy [=(S)-(+)-4-Nitro-7-(3-aminopyrrolidin-1-yl)-2,1,3-benzoxadiazole] [HPLC Labeling Reagent for e.e. Determination]