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
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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