nitrobenzene nitroreductase (NADPH) activity https://github.com/geneontology/go-ontology/issues/23357 https://github.com/geneontology/go-ontology/issues/28526 UM-BBD_enzymeID:r0303 GO:0018546 Catalysis of the reaction: H2O + N-phenylhydroxylamine + 2 NADP+ = 2 H+ + 2 NADPH + nitrobenzene. molecular_function EC:1.7.1.16 MetaCyc:RXN-8833 MetaCyc:RXN-8815 RHEA:52884 oxidoreductase activity, acting on other nitrogenous compounds as donors, with NAD or NADP as acceptor