Isocaproic Acid from Japan
Isocaproic acid (4-methylpentanoic acid) is a branched saturated acyclic C6 monocarboxylic acid used in fragrances, lubricants, and biochemical research. Classified in HTS 2915.90.50.50 as it does not match enumerated specific acids in heading 2915.
Duty Rate — Japan → United States
23.7%
Rate breakdown
9903.04.6211.2%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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
• CAS 646-07-1 certification required for customs verification
• Low melting point (-34°C); ensure heated transport if solidified
• Separate from straight-chain caproic acid documentation to avoid statistical reporting errors