Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 36 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. 29 36 25 Vitamin B6 and its derivatives, unmixed Commodity Code Description 29 36 25 00 Vitamin B6 and its derivatives, unmixed