Adamantane-1-Carboxylic Acid from Mexico
Adamantane-1-carboxylic acid features a diamondoid cage structure with carboxylic acid group, used in pharmaceuticals and materials science. HTS 2916.20.50.00 covers this as an 'other' cyclanic monocarboxylic acid due to its fully saturated polycyclic nature.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
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
• Include NMR spectra confirming adamantane structure; ensure proper Hazard Class 8 labeling for corrosive acids; declare research vs commercial end-use