Caffeine Monohydrate Crystals USP from Mexico
Hydrated form of caffeine (C8H10N4O·H2O) meeting USP standards for pharmaceutical applications. Remains classified under HTS 2939.30.00.00 as the parent alkaloid compound per Chapter Note 1(d). Used in sustained-release formulations.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Document water content (8.5-9.5%) to distinguish from anhydrous; Humidity-controlled packaging required; DMF reference for drug master file compliance