2918.16.50 - Other

This HTS category, 2918.16.50, encompasses "Other" gluconic acid derivatives, specifically excluding pure gluconic acid itself which is classified under 2918.16.10. This classification is for esters and salts of gluconic acid that do not fall into more specific subcategories. These compounds are organic acids derived from glucose, characterized by both a carboxylic acid group and one or more hydroxyl groups.

The distinction from the sibling category 2918.16.10 is crucial; this node is intended for compounds that are derivatives of gluconic acid, rather than the acid in its uncombined form. This ensures accurate tariff application based on the chemical structure and function.

Within this "Other" category, further subdivisions exist to specify common salts and esters. For instance, sodium gluconate, a widely used chelating agent and food additive, is specifically classified under 2918.16.50.10. The remaining "Other" subcategory (2918.16.50.50) covers a broader range of gluconate esters and less common salts, providing a residual classification for these diverse chemical compounds derived from gluconic acid.