they reduce the corresponding dopamine aldehydes ( 3,4-dihydroxyphenyl ) acetaldehyde and ( 4-hydroxy-3-methoxyphenyl ) acetaldehyde ( hmpal ) with kcat/km values varying from 7800 to 190,000 mm-1 min-1 , considerably more efficient than the reduction of acetaldehyde with kcat/km values from 780 to 4900 mm-1 min-1 .
C0001992
aldehydes
C0000966
acetaldehyde