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 32 Propylene glycol (propane-1,2-diol) Commodity Code Description 29 05 32 00 Propylene glycol (propane-1,2-diol)