Diisobutyl Ketone (2,6-Dimethyl-4-Heptanone) from Mexico
Diisobutyl ketone, chemically 2,6-dimethyl-4-heptanone, is a high-boiling acyclic ketone employed in solvent blends for coatings and adhesives. It qualifies for HTS 2914.19.00.00 as an acyclic ketone without other oxygen functions, per strict Chapter 29 criteria for chemically defined compounds.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6096%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
• Declare exact CAS number (108-83-8) on entry docs; test for stabilizer content per Chapter note (f)
• Common issue: classifying with plasticizers into 390x headings