Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 11 Acetals and hemiacetals and their halogenated... derivatives 29 11 00 Acetals and hemiacetals, whether or not with other oxygen function, and their ..... 29 11 00 00 Acetals and hemiacetals, whether or not with other oxygen function, and their ..... Commodity Code Description 29 11 00 00 000 Acetals and hemiacetals, whether or not with other oxygen function, and their .....