In enzymology, a benzaldehyde dehydrogenase (NADP+) () is an enzyme that catalyzes the chemical reaction benzaldehyde + NADP+ + H2O benzoate + NADPH + 2 H+ The 3 substrates of this enzyme are benzaldehyde, NADP+, and H2O, whereas its 3 products are benzoate, NADPH, and H+. This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is benzaldehyde:NADP+ oxidoreductase. Other names in common use include NADP+-linked benzaldehyde dehydrogenase, and benzaldehyde dehydrogenase (NADP+). This enzyme participates in benzoate degradation via hydroxylation and toluene and xylene degradation. References EC 1.2.1 NADPH-dependent enzymes Enzymes of unknown structure