14786-27-7 InChI=1/C14H11NO4/c16-14(19-10-11-4-2-1-3-5-11)12-6-8-13(9-7-12)15(17)18/h1-9H,10H benzoic acid, 4-nitro-, phenylmethyl ester benzyl 4-nitrobenzoate