for the following products
4-(N-Methyl-N-hydroxyethyl)aminobenzaldehyde | 4-[(2-Hydroxyethyl)(methyl)amino]benzaldehyde | N-Methyl-N-2-hydroxyethyl-4-aminobenzaldehyde | N-Methyl-N-hydroxyethyl-4-amino benzaldehyde and p-[N-Methyl-N-(beta-hydroxyethyl)]amino benzaldehyde
