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
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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