Pantolactone from Japan
Pantolactone, a five-membered lactone used in pantothenic acid synthesis, contains oxygen heteroatom only and falls under HTS 2932.20.50. Essential intermediate for vitamin B5 production.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Optical purity (>98% D-form) certification required for pharma use
• Hygroscopic nature requires sealed aluminum-lined drums
• Avoid racemic mixture declarations which command lower pricing but different uses