Provitamins, vitamins; natural or reproduced by synthesis (including natural concentrates) derivatives thereof used as vitamins, and intermixtures of the fore-going, whether or not in any solvent

293621 Vitamins; vitamins A and their derivatives, unmixed 293622 Vitamins; vitamin B1 and its derivatives, unmixed 293623 Vitamins; vitamin B2 and its derivatives, unmixed 293624 Vitamins; D- or DL-pantothenic acid (vitamin B5) and its derivatives, unmixed 293625 Vitamins; vitamin B6 and its derivatives, unmixed 293626 Vitamins; vitamin B12 and its derivatives, unmixed 293627 Vitamins; vitamin C and its derivatives, unmixed 293628 Vitamins; vitamin E and its derivatives, unmixed 293629 Vitamins; n.e.c. in item no. 2936.2, and their derivatives, unmixed 293690 Vitamins; n.e.c. in heading no. 2936, including natural concentrates