Isovaleric Acid from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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