Dipropyl Azelate from Japan
Dipropyl azelate, the dipropyl ester of azelaic acid (nonanedioic acid), functions as a plasticizer and solvent in coatings. Classified in HTS 2917.13.00.90 as an 'other' azelaic acid ester, meeting Chapter 29 criteria for separate chemically defined compounds without excluded additives.
Duty Rate — Japan → United States
22.7%
Rate breakdown
9903.04.6210.2%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
• Confirm n-propyl vs isopropyl via GC; isomer affects potential reclassification
• Low-volume imports (<100kg) still require full chemical documentation for CBP review
• Segregate from adipate esters in warehouse to prevent cross-contamination affecting test results