Butyrylfentanyl

Butyrylfentanyl is an N-butyryl analog of fentanyl, a derivative captured by HTS 2934.92.00.00 for other fentanyls. It is a separate chemically defined compound per chapter note 1(a).

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%6.5%
🇲🇽Mexico6.5%6.5%
🇨🇦Canada6.5%6.5%
🇩🇪Germany6.5%6.5%
🇯🇵Japan6.5%6.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2924.29Higher: 16.5% vs 6.5%

If for amide derivatives without full fentanyl scaffold

Partial amide structures classify by function in 2924.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Declare as research chemical only; comply with Chemical Convention treaties

Pitfall: Lack of batch CoA causes FDA refusal

Related Products under HTS 2934.92.00.00

Fentanyl Citrate

Fentanyl citrate is the citrate salt form of fentanyl, a synthetic opioid classified as a derivative under HTS 2934.92.00.00 due to its specific heterocyclic structure and chemical definition as a fentanyl derivative. It is primarily used in medical settings for anesthesia and pain management.

Sufentanil Citrate

Sufentanil citrate is a potent fentanyl derivative used as an analgesic in surgical procedures, falling under HTS 2934.92.00.00 as a chemically defined other fentanyl. Its structure modifies the fentanyl base with a thiophene ring, qualifying it within this chapter's heterocyclic compounds.

Alfentanil Hydrochloride

Alfentanil hydrochloride is a short-acting synthetic opioid fentanyl derivative, chemically defined and classified under HTS 2934.92.00.00. It features a modified piperidine structure, fitting chapter 29's heterocyclic compounds scope.

Carfentanil Oxalate

Carfentanil oxalate, an extremely potent fentanyl analog used in veterinary medicine, is classified under HTS 2934.92.00.00 as a derivative. Its chemical structure derives directly from fentanyl with modifications for enhanced potency.

Remifentanil Hydrochloride

Remifentanil hydrochloride is an ester-based ultra-short-acting fentanyl derivative for anesthesia, under HTS 2934.92.00.00. It qualifies as a heterocyclic compound per chapter notes on esters classified by parent structure.

Lofentanil Oxalate

Lofentanil oxalate is a long-acting research fentanyl derivative, chemically defined under HTS 2934.92.00.00. Its structure aligns with chapter 29's heterocyclic provisions for such compounds.