2,6-Dimethyl-6-hepten-2-ol Ketone Derivative from Mexico
This unsaturated ketone-alcohol contains both allylic alcohol and methyl ketone functionalities. HTS 2914.40.90.00 classification as ketone-alcohol with other oxygen function. Used in vitamin A synthesis and polymer modifiers.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6095.2%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
• Hydroperoxide test results mandatory due to allylic rearrangement risk
• Vitamin A precursor status may trigger end-use verification
• UV stabilizer concentration declaration prevents photo-degradation claims