Tetrachlorocyclobutane from Germany
Tetrachlorocyclobutane features a four-membered ring with four chlorine atoms, used as a reactive intermediate. Classified in HTS 2903.89.70 for halogenated cyclanic hydrocarbon derivatives outside specific subheadings. Pure compound status confirmed by Chapter 29 note (a).
Duty Rate — Germany → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Supply vapor pressure data for proper ventilation requirements during unloading
• Use temperature-controlled containers (<30°C) to maintain ring stability
• Document synthetic route to confirm no sulfonated byproducts present