2,2,3,3-Tetrachlorocyclobutanone from Germany
Despite ketone functionality, 2,2,3,3-tetrachlorocyclobutanone classifies primarily by halogenation under HTS 2903.89.70. The cyclobutane ring with geminal dichlorides defines it as halogenated cyclanic derivative. Chapter notes prioritize halogenation over minor oxygen functions.
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
• Include carbonyl stretch IR data to document oxygen function without reclassification
• Store below 0°C to prevent ring expansion rearrangement
• Label as Eye Irritant Category 2A per GHS standards