Food-Grade Glucono Delta Lactone USP from Japan
USP-grade glucono-δ-lactone meets pharmaceutical standards for use in food and supplements, classified under HTS 2932.20.50.20 as the pure heterocyclic lactone compound. This high-purity form (GDL) is essential for controlled acidification in yogurt fermentation and surimi production. Its gradual hydrolysis prevents rapid pH drops common with other acidulants.
Duty Rate — Japan → United States
23.8%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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
• Require USP/NF certificate; customs frequently rejects without pharmacopeia compliance documentation
• Label as 'food additive' not 'chemical' to qualify for food import channels and avoid chemical weapon scrutiny
• Batch testing for arsenic (<3 ppm) mandatory; common rejection reason in recent FDA import alerts