Pentachlorocyclopentane from Canada
Pentachlorocyclopentane serves as a reactive intermediate in fluorochemical and pesticide synthesis, featuring five chlorine atoms on a five-membered cyclopentane ring. HTS 2903.89.70.90 applies as a halogenated cyclanic hydrocarbon per Chapter 29 definitions, excluding sulfonated or aromatic derivatives. The high chlorine content requires specialized safety handling.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Require stability test certificates for transport; declare exact chlorine substitution pattern; monitor for inadvertent classification as pesticide intermediate under Chapter 38