Pimelic Acid from Mexico
Pimelic acid (heptanedioic acid) is technically dicarboxylic but often handled as monocarboxylic equivalent in trade; used in polymers. Classified under 'other' in HTS 2916.20.50.00 for cyclic derivatives though primarily acyclic.
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
• Specify if cycloaliphatic substituted variant; provide dicarboxylic vs monocarboxylic analysis; bulk imports require proper UN packaging certification