2903.23.00.00 - Tetrachloroethylene (Perchloroethylene)

This HTS classification, 2903.23.00.00, specifically designates Tetrachloroethylene, also commonly known as Perchloroethylene. This is a chlorinated organic compound characterized by a molecule containing two carbon atoms and four chlorine atoms, with a double bond between the carbon atoms, classifying it as an unsaturated chlorinated derivative of acyclic hydrocarbons. It is primarily recognized for its industrial applications, notably as a dry-cleaning solvent and in metal degreasing due to its potent solvent properties.

Within the broader category of unsaturated chlorinated derivatives of acyclic hydrocarbons, 2903.23.00.00 is distinguished from its siblings by its precise chemical structure and naming. While 2903.21.00.00 covers Vinyl chloride (Chloroethylene) and 2903.22.00.00 encompasses Trichloroethylene, Tetrachloroethylene possesses a higher degree of chlorination, with four chlorine atoms attached to the two-carbon acyclic backbone. The sibling category 2903.29.00.00 serves as a residual provision for other, less specifically defined unsaturated chlorinated acyclic hydrocarbons.

As a leaf node, 2903.23.00.00 does not have further subcategories. Classification at this level is precise, relying on the accurate identification of the chemical substance itself. Therefore, any product meeting the chemical definition of Tetrachloroethylene, regardless of its specific grade, purity, or intended use (as long as it remains the chemical substance itself and not a formulation or mixture that would be classified elsewhere), would fall under this HTS code. Its primary role as a specific industrial chemical is the defining characteristic for its classification here.