Glucono-Delta-Lactone (GdL) Powder from Japan
Glucono-delta-lactone, the cyclic ester of gluconic acid, technically qualifies under broader carboxylic acid with alcohol function but commercially follows HTS 2918.16.50 pattern. Used as slow-release acidulant in food processing.
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
• Include lactone ring confirmation via FTIR/NMR distinguishing from free acid
• Certify slow hydrolysis rate suitable for meat curing/baking applications
• Prevent hydrolysis during storage with low-humidity desiccated packaging