Choline Theophyllinate from China
Choline theophyllinate is a quaternary ammonium salt of theophylline for gastric protection. Classified HTS 2939.59.00.00 following parent alkaloid per salt classification rules. Highly soluble for oral solutions.
Duty Rate — China → 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
• Quat salt conductivity testing; no choline bitartrate confusion; bulk only, no retail packs