1.2.1.B23 4,4'-diapolycopen-4'-al-4-oic acid + NAD(P)+ - 422552 1.2.1.B23 4,4'-diapolycopen-4-al + NAD(P)+ - 422553 1.2.1.B23 4,4'-diapolycopenedial + NAD(P)+ - 422554 1.2.1.B23 4,4'-diaponeurosporen-4-al + NAD(P)+ - 422556