13-cis Retinoic Acid from Mexico
13-cis retinoic acid is an active Vitamin A derivative used in dermatological treatments, functioning as a vitamin metabolite. Under HTS 2936.21.00.00 as a chemically defined Vitamin A derivative primarily employed as such. Supplied as bulk API powder.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% 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
• DEA watch-list chemical; ensure CTR/ARC filings for bulk pharma imports
• Toxic substance declarations required; SDS must detail retinoid hazards
• Confirm 'primarily as vitamin' vs. therapeutic use to avoid Chapter 30