Harmonized System
Section VI > Chapter 29 > Heading 2935 > 2935.20
N-Ethylperfluorooctane sulphonamide
Section VI > Chapter 29 > Heading 2935 > 2935.30
N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide
Section VI > Chapter 29 > Heading 2935 > 2935.40
N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide
Section VI > Chapter 29 > Heading 2935 > 2935.50
Other perfluorooctane sulphonamides
Section VI > Chapter 29 > Heading 2936
Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent.
Section VI > Chapter 29 > Heading 2936 > 2936.2
Vitamins and their derivatives, unmixed
Section VI > Chapter 29 > Heading 2936 > 2936.2 > 2936.21
Vitamins A and their derivatives
Section VI > Chapter 29 > Heading 2936 > 2936.2 > 2936.22
Vitamin B1 and its derivatives
Section VI > Chapter 29 > Heading 2936 > 2936.2 > 2936.23
Vitamin B2 and its derivatives