Pantolactone from China
Pantolactone, a five-membered lactone used in pantothenic acid (Vitamin B5) synthesis, classified under HTS 2932.20.50.50 for other oxygen-heterocycle lactones. Essential intermediate for vitamin production.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6096.3%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
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• USP/NF reference standards documentation for pharmaceutical intermediates
• Chiral purity specification (D-pantolactone vs racemic) affects classification consistency
• End-use declaration prevents classification as finished vitamin under 2936