Isovaleric Acid from Mexico
Isovaleric acid (3-methylbutanoic acid) is a branched saturated acyclic monocarboxylic acid with a pungent odor, used in food flavoring, perfumes, and pharmaceuticals. It qualifies for HTS 2915.90.18 as an 'other' acid in this saturated acyclic category, distinct from straight-chain C1-C8 acids listed separately.
Duty Rate — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• For food-grade imports, provide FDA prior notice and GRAS affirmation letters; use UN 1760 packaging for corrosive liquids; test for chiral purity if specified for pharma intermediates