In enzymology, 2,3-dihydroxy-2,3-dihydro-p-cumate dehydrogenase () is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme are (2S,3R)-2,3-dihydroxy-2,3-dihydro-p-cumic acid and oxidised nicotinamide adenine dinucleotide (NAD<sup>+</sup>). Its products are 2,3-dihydroxy-p-cumic acid, reduced NADH, and a proton.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is cis-2,3-dihydroxy-2,3-dihydro-p-cumate:NAD+ oxidoreductase. This enzyme participates in biphenyl degradation.