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:

2936.21.00.00Vitamins A and their derivatives 2936.22.00.00Vitamin B1 (Thiamine) and its derivatives 2936.23.00.00Vitamin B2 (Riboflavin) and its derivatives 2936.24.01.00D- or DL-Pantothenic acid (Vitamin B5) and its derivatives 2936.25.00.00Vitamin B6 (Pyridoxine and related compounds with Vitamin B6 activity) and its derivatives 2936.26.00.00Vitamin B12 (Cyanocobalamin and related compounds with Vitamin B12 activity) and its derivatives 2936.27.00.00Vitamin C (Ascorbic acid) and its derivatives 2936.28.00.00Vitamin E (Tocopherols and related compounds with Vitamin E activity) and its derivatives 2936.29Other vitamins and their derivatives: 2936.29.10.00Folic acid 2936.29.16Niacin and niacinamide 2936.29.16.10Pharmaceutical grade 2936.29.16.20Other 2936.29.16.30Niacinamide 2936.29.20.00Aromatic or modified aromatic 2936.29.50Other 2936.29.50.20Vitamins D and their derivatives 2936.29.50.30Biotin 2936.29.50.50Other 2936.90.01Other, including provitamins and natural concentrates 2936.90.01.10Provitamins 2936.90.01.50Other