Glucono-δ-lactone Powder
Pure glucono-δ-lactone (GDL) is a heterocyclic lactone derived from gluconic acid, used primarily as a slow-release acidulant in food processing. It falls under HTS 2932.20.50.20 as it is specifically named 'other lactones - glucono-δ-lactone' within the heterocyclic compounds with oxygen hetero-atoms. This white, odorless powder hydrolyzes gradually to gluconic acid, making it ideal for applications requiring controlled pH adjustment.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by acid function rather than lactone structure
If imported emphasizing gluconic acid properties over lactone ring, it may fall under carboxylic acids with alcohol function
If when imported as formulated food additive mixture
Mixtures containing GDL with other additives exceed Chapter 29 purity requirements and enter prepared chemical mixtures
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify purity certificate (min. 99%) as food-grade GDL requires compliance with FDA specifications under 21 CFR
• Include Certificate of Analysis (CoA) showing absence of heavy metals; common pitfall is mislabeling as general acidulant
• For food use, ensure Kosher/Halal certification if targeting specialty markets to avoid customs holds
Related Products under HTS 2932.20.50.20
Food-Grade Glucono Delta Lactone USP
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.
Industrial Glucono-δ-lactone Bulk Bags
Bulk glucono-δ-lactone packaged in 25kg bags for industrial food manufacturing, specifically classified under HTS 2932.20.50.20 as the named lactone. Used in large-scale tofu production and canned meat processing for texture control and preservation. Meets Chapter 29 requirements for chemically defined organic compounds without added stabilizers beyond transport needs.
Pharma-Grade GDL for Effervescent Tablets
Pharmaceutical-grade glucono-δ-lactone for use in effervescent formulations and controlled-release medications, under HTS 2932.20.50.20. This pure heterocyclic compound provides gradual acidification without taste issues of citric acid. Complies with Chapter 29 as a separate chemically defined organic compound.
Kosher-Certified Glucono Delta Lactone
Kosher-certified glucono-δ-lactone for baking and confectionery applications, classified precisely under HTS 2932.20.50.20. This fermentation-derived lactone replaces chemical leavening agents in matzo production and kosher meat tenderizing. Pure form meets Chapter 29(a) requirements for chemically defined compounds.
GDL 99% Min. Technical Grade
Technical grade glucono-δ-lactone with 99% minimum purity for industrial applications, under HTS 2932.20.50.20. Used in polymer production and metal surface treatment requiring controlled acidity. Qualifies as separate chemically defined compound per Chapter 29 note (a).
Gluconolactone Fermentation-Derived USP
Fermentation-produced glucono-δ-lactone USP grade, classified under HTS 2932.20.50.20 as the specific heterocyclic lactone. Preferred over synthetic routes for 'natural' labeling in clean-label foods. Identical chemical structure qualifies under Chapter 29 organic compound definitions.