Perfluoroneopentyl Bromide from Mexico
(CF3)3CBr, branched perhalogenated alkyl bromide. Acyclic hydrocarbon fully substituted with fluorine and bromine, classifiable 2903.78.00.00. Highly volatile fluorinated building block.
Duty Rate — Mexico → 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
• Extremely low boiling point (-10°C); requires pressurized or cooled transport
• NMR confirms neopentyl structure vs linear isomers
• Ozone depletion potential assessment may be required