2905.51.00.00 - Ethchlorvynol (INN)

This HTS category, 2905.51.00.00, specifically classifies Ethchlorvynol (INN). Ethchlorvynol is a hypnotic and sedative medication, an unsaturated secondary alcohol characterized by the presence of a chlorine atom and a vinyl group. Its inclusion under this heading signifies a precise classification for this particular chemical compound, differentiating it from broader categories of modified acyclic alcohols.

At this level of detail within the tariff, 2905.51.00.00 stands as a distinct entry, separating Ethchlorvynol from the more general "Other" halogenated, sulfonated, nitrated, or nitrosated derivatives of acyclic alcohols found under 2905.59. This precise codification is essential for accurate customs declaration and duty assessment, ensuring that Ethchlorvynol is not misclassified with other, albeit related, chemical substances.

As a leaf node, this classification does not have further subcategories. Therefore, the focus remains on the definitive identification of Ethchlorvynol itself. Classification within this code is determined by the unique chemical structure and designation of Ethchlorvynol, reflecting its specific pharmaceutical and chemical properties rather than any further structural subdivisions.