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2,2,3,3-Tetrachlorocyclobutanone from Mexico

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 — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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

2,2,3,3-Tetrachlorocyclobutanone from Mexico — Import Duty Rate | HTS 2903.89.70