2918.29.30.00 - Gallic acid

This category encompasses Gallic acid, a phenolic carboxylic acid naturally occurring in gallnuts, sumac, tea, oak bark, and other plants. It is characterized by its trihydroxybenzoic acid structure and is primarily used in the pharmaceutical industry as an antiseptic, astringent, and antioxidant, as well as in the production of inks, dyes, and photographic developers.

Gallic acid is distinguished from its siblings under the "Other" subheading within this tariff chapter by its specific chemical structure and common industrial applications. While other entries at this level may cover various cresotic acids, resorcylic acids, or specific hydroxycinnamic acids and their salts, Gallic acid stands alone due to its unique trihydroxyl substitution pattern on the benzoic acid ring, which dictates its distinct properties and uses.

As a leaf node in the HTS database, Gallic acid (HTS Code 2918.29.30.00) represents a specific chemical entity with no further subdivisions. Classification under this code is definitive for pure Gallic acid and its direct derivatives not otherwise specified in preceding or succeeding subheadings. Importers and exporters should ensure that the commodity precisely matches the chemical description and intended use to avoid misclassification.