Methylsuccinic Acid from Japan
Methylsuccinic acid (2-methylbutanedioic acid), an important intermediate in fine chemical synthesis. Classified as acyclic polycarboxylic acid under HTS 2917.19.70.50. Chemically defined compound with defined substitution pattern.
Duty Rate — Japan → United States
23.5%
Rate breakdown
9903.04.6211%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
• Include chiral specification if enantiomerically pure
• Common misclassification as 'succinic acid derivative' - specify exact structure
• Ensure <0.1% heavy metals for pharmaceutical intermediate use