2932.20.25.00 - 4-Hydroxycoumarin

This HTS category, 2932.20.25.00, specifically classifies 4-Hydroxycoumarin. This compound is a derivative of coumarin characterized by a hydroxyl group at the 4th position of the heterocyclic ring. Its primary use is as an intermediate in the synthesis of anticoagulant rodenticides and certain pharmaceuticals. Classification within this heading is based on the specific chemical structure of 4-hydroxycoumarin, a lactone containing an oxygen heteroatom within its ring system and possessing an aromatic character.

The preceding "Other" at the 2932.20.25 level indicates that 4-hydroxycoumarin is not specifically enumerated under other subheadings within the "Aromatic" lactones. Its distinct chemical identity as 4-hydroxycoumarin is the definitive criterion for its classification here, differentiating it from other aromatic lactones that may have different functional groups or substitution patterns.

As this is a leaf node in the HTS, there are no further subdivisions. Therefore, accurate classification relies solely on confirming the product's identity as 4-Hydroxycoumarin, ensuring it meets the chemical specifications and intended use associated with this entry. This level is critical for distinguishing this specific compound from other, more broadly defined categories of aromatic lactones.