Other fentanyls and their derivatives
Heterocyclic compounds with oxygen hetero-atom(s) only. > Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: > Other fentanyls and their derivatives > Other fentanyls and their derivatives > Other fentanyls and their derivatives
Duty Rate (from China)
Products classified under Tariff item 2933.34
Acetylfentanyl
Acetylfentanyl is a synthetic opioid and a derivative of fentanyl, characterized by an acetyl group on the anilino nitrogen. Its structure contains an unfused piperidine ring, which is a hydrogenated pyridine ring, placing it under tariff item 2933.34.00 for other fentanyls and their derivatives.
2933.34.00Alfentanil Hydrochloride
Alfentanil hydrochloride is the hydrochloride salt of alfentanil, a short-acting synthetic opioid and fentanyl derivative. Its molecular structure includes a piperidine ring (hydrogenated pyridine) and is classified under tariff item 2933.34.00 as an other fentanyl derivative.
2933.34.00Carfentanil
Carfentanil is a highly potent synthetic opioid and a derivative of fentanyl, featuring a 4-anilinopiperidine core with a piperidine ring. This structure contains an unfused hydrogenated pyridine ring, qualifying it for classification under tariff item 2933.34.00 for other fentanyls and their derivatives.
2933.34.00Cyclopropylfentanyl
Cyclopropylfentanyl is a synthetic opioid and a fentanyl derivative, where a cyclopropyl group is attached to the amide nitrogen. Its core piperidine ring, a hydrogenated pyridine, places it under tariff item 2933.34.00 for other fentanyls and their derivatives.
2933.34.00Fentanyl Citrate
Fentanyl citrate is the citrate salt of fentanyl, a synthetic opioid analgesic. The fentanyl base contains a piperidine ring (hydrogenated pyridine), and as a salt of a fentanyl derivative, it is classified under tariff item 2933.34.00.
2933.34.00Furanylfentanyl
Furanylfentanyl is a synthetic opioid and a fentanyl derivative, featuring a furan ring substitution on the piperidine structure. The piperidine ring is a hydrogenated pyridine, and the compound is classified under tariff item 2933.34.00 for other fentanyls and their derivatives.
2933.34.00Lofentanil
Lofentanil is a potent synthetic opioid and a fentanyl derivative, containing a piperidine ring with structural elements related to pyridine. It is classified under tariff item 2933.34.00 as an other fentanyl derivative.
2933.34.00Remifentanil Hydrochloride
Remifentanil hydrochloride is the hydrochloride salt of remifentanil, an ultra-short-acting synthetic opioid and fentanyl derivative. Its structure includes a piperidine ring (hydrogenated pyridine) and ester functions, placing it under tariff item 2933.34.00.
2933.34.00Sufentanil Base
Sufentanil base is a potent synthetic opioid and a fentanyl derivative, featuring a thiophene-substituted piperidine ring system. The piperidine ring is a hydrogenated pyridine, and the compound is classified under tariff item 2933.34.00 for other fentanyls and their derivatives.