Vitamins D and their derivatives
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: > Vitamins and their derivatives, unmixed: > Other vitamins and their derivatives: > Other: > Other > Vitamins D and their derivatives
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2936.29.50.20
Cholecalciferol (Vitamin D3)
Cholecalciferol, also known as Vitamin D3, is a fat-soluble secosteroid derived from 7-dehydrocholesterol and reproduced synthetically for nutritional supplements. It falls under HTS 2936.29.50.20 as a unmixed vitamin D derivative used primarily as a vitamin to support calcium absorption and bone health. This chemically defined organic compound is supplied in pure form for pharmaceutical and dietary applications.
Calcipotriene (Vitamin D3 Analog)
Calcipotriene is a synthetic Vitamin D3 derivative used primarily for its vitamin-like hormonal effects in psoriasis treatment. Under HTS 2936.29.50.20, it qualifies as a Vitamin D derivative per Chapter notes allowing hormone analogues used primarily as vitamins. Provided as high-purity powder for topical pharmaceutical formulations.
Alfacalcidol (1α-Hydroxyvitamin D3)
Alfacalcidol is a hydroxylated Vitamin D3 prodrug used primarily as a vitamin derivative for renal osteodystrophy treatment. It falls under HTS 2936.29.50.20 as a chemically defined Vitamin D derivative meeting chapter requirements for provitamins and vitamin intermediates. Supplied in pure form for oral solution manufacturing.
Vitamin D3 500,000 IU/g Powder
High-potency Vitamin D3 powder standardized at 500,000 International Units per gram, used primarily as a vitamin in supplement manufacturing. Classified under HTS 2936.29.50.20 as cholecalciferol derivative meeting purity standards for unmixed vitamins. The powder form contains minimal stabilizer per Chapter 29 note (f).
Paricalcitol (19-nor-1α,25-Dihydroxyvitamin D2)
Paricalcitol is a synthetic Vitamin D analog used primarily as a vitamin derivative for secondary hyperparathyroidism. HTS 2936.29.50.20 covers this chemically defined compound as it functions primarily as a vitamin per Chapter 29 hormone note (b). Bulk API form for IV and oral pharmaceuticals.
Dihydrotachysterol (Vitamin D4 Analog)
Dihydrotachysterol is a partially activated Vitamin D derivative used primarily for calcium regulation in hypocalcemia treatment. It qualifies under HTS 2936.29.50.20 as a Vitamin D derivative that is a separate organic compound used as a vitamin. Historical use in pharmaceutical compounding.
Calcitetrol (Vitamin D Derivative)
Calcitetrol represents specialized Vitamin D derivatives used in research and niche therapeutics, functioning primarily as vitamins. Covered by HTS 2936.29.50.20 for unmixed Vitamin D compounds meeting Chapter 29 chemical definition requirements. High-purity research chemical grade.
7-Dehydrocholesterol (Provitamin D3)
7-Dehydrocholesterol serves as the provitamin precursor to Vitamin D3, converted by UV light, used primarily in vitamin synthesis. HTS 2936.29.50.20 includes provitamins and Vitamin D derivatives as chemically defined organic compounds. Bulk precursor for supplement manufacturing.
Ergocalciferol (Vitamin D2)
Ergocalciferol, or Vitamin D2, is a synthetic derivative of ergosterol used primarily as a vitamin in fortification and supplementation. Classified under HTS 2936.29.50.20 as an unmixed Vitamin D derivative, it promotes bone mineralization and is a separate chemically defined organic compound. Commonly produced for vegan-friendly supplements.
Calcifediol (25-Hydroxyvitamin D3)
Calcifediol is the 25-hydroxylated active metabolite of Vitamin D3, used primarily as a vitamin derivative in therapeutic supplements. It qualifies for HTS 2936.29.50.20 as a Vitamin D derivative that is a separate chemically defined organic compound essential for treating vitamin D deficiency. Supplied in high-purity crystalline form for pharmaceutical compounding.