Carfentanil from Japan
Carfentanil is a potent fentanyl analog and derivative featuring a 4-anilinopiperidine core with a pyridine-like heterocyclic nitrogen structure, used primarily in veterinary medicine. It is classified under HTS 2933.34.00.00 as an 'other fentanyl' due to its chemical relation to fentanyl and inclusion of unfused pyridine ring elements. This separate chemically defined organic compound fits chapter 29 provisions for heterocyclic compounds.
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
• Secure special veterinary import permits and Schedule I DEA quotas; ensure stabilizer additions comply with chapter note (f) without altering general use; watch for misclassification as veterinary premix leading to higher scrutiny