Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 12 Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde. Commodity Code Description 29 12 11 Methanal (formaldehyde) 29 12 12 Ethanal (acetaldehyde) 29 12 19 Other 29 12 21 Benzaldehyde 29 12 29 Other 29 12 41 Vanillin (4-hydroxy-3-methoxybenzaldehyde) 29 12 42 Ethylvanillin (3-ethoxy-4-methoxybenzaldehyde) 29 12 49 Other 29 12 50 Cyclic polymers of aldehydes 29 12 60 Paraformaldehyde