Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 05 Acyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives. 29 05 41 2-ethyl-2-(hydroxymethyl)propane-1,3-diol (trimethylolpropane) Commodity Code Description 29 05 41 00 2-ethyl-2-(hydroxymethyl)propane-1,3-diol (trimethylolpropane)