7-Dehydrocholesterol (Provitamin D3) from Japan
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.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6215%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• UV stability testing documentation prevents reclassification as unstable mixture
• Declare conversion efficiency data supporting provitamin status