N-p-nitrobenzoyl-2-phenyliminooxazolidine

N-p-nitrobenzoylsuccinimide

2-(p-nitrobenzoyloxy)-2-cyclohexen-1-one

guanidinium 2-(4-nitrobenzoylthio)ethanesulfonate

2-(4-nitrobenzoyl)sulfanylacetic acid