121-92-6 3-nitrobenzoic acid BENZOIC ACID,3-NITRO MFC7 H5 N1 O4 InChI=1/C7H5NO4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10 benzoic acid, 3-nitro-