HS CodesVI · Products of the chemical or allied industries29 · Organic chemicals29122912Chapter 29Copy pageAldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehydeDescriptionAldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehydeSubheadings291211Methanal (formaldehyde)291212Ethanal (acetaldehyde)291219Other291221Benzaldehyde291229Other291241Vanillin (4-hydroxy-3-methoxybenzaldehyde)291242Ethylvanillin (3-ethoxy-4-hydroxybenzaldehyde)291249Other291250Cyclic polymers of aldehydes291260ParaformaldehydeWas this page helpful?YesNoPrevious2911Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivativesNextHalogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 29122913