Alfentanil Hydrochloride
Alfentanil hydrochloride is the hydrochloride salt of alfentanil, a short-acting fentanyl derivative with a piperidine nitrogen heterocycle and pyridine ring influence in its structure. It is classified in HTS 2933.34.00.00 per chapter note on salts of organic compounds following the parent fentanyl derivative heading. Used as a pure chemical intermediate for rapid-onset analgesics.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If viewed primarily as a carboxamide without heterocyclic emphasis
Amine-function compounds earlier in chapter might apply if nitrogen function overshadows the pyridine/fentanyl structure.
If sold in measured anesthetic doses
Dosage-form preparations for retail sale move to Chapter 30 as mixed medicaments.
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Import Tips & Compliance
• Include salt formation proof in COA to match parent compound classification per note 3(C)(1); use stabilizers only for transport per note (f); common pitfall is forgetting bilingual hazard labeling for controlled substances
Related Products under HTS 2933.34.00.00
Fentanyl Citrate
Fentanyl citrate is the citrate salt form of fentanyl, a synthetic opioid analgesic chemically classified as a 4-anilino-N-phenethylpiperidine derivative with a piperidine nitrogen hetero-atom. It falls under HTS 2933.34.00.00 as one of the other fentanyls and their derivatives containing an unfused pyridine ring structure in its heterocyclic framework. This pure chemical compound is used in pharmaceutical manufacturing for pain management applications.
Carfentanil
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.
Sufentanil Base
Sufentanil is a fentanyl derivative with a thiophene-substituted piperidine ring system incorporating nitrogen hetero-atoms akin to pyridine structures, acting as a potent mu-opioid agonist. Under HTS 2933.34.00.00, it qualifies as an other fentanyl derivative due to its shared chemical scaffold and unfused pyridine-related heterocycle. This organic compound is imported for synthesis into anesthetic formulations.
Remifentanil Hydrochloride
Remifentanil hydrochloride, a fentanyl derivative featuring a piperidine ring with ester oxygen functions and pyridine-related nitrogen heterocycle, is an ultra-short-acting opioid. HTS 2933.34.00.00 covers it as an other fentanyl derivative, classified by its last-occurring heterocyclic heading per chapter notes. Imported as bulk chemical for IV anesthetic production.
Lofentanil
Lofentanil is a selective fentanyl derivative opioid with a piperidine nitrogen hetero-ring and unfused pyridine structural elements, known for high potency. It fits HTS 2933.34.00.00 as an other fentanyl under chapter 29's heterocyclic provisions for separate organic compounds. Primarily a research chemical import.
Acetylfentanyl
Acetylfentanyl (N-(1-phenethylpiperidin-4-yl)-N-phenylacetamide) is a synthetic fentanyl derivative with acetyl substitution on the anilino group and piperidine nitrogen heterocycle akin to pyridine. Classified under HTS 2933.34.00.00 for other fentanyls, as a chemically defined compound with the required structural features. Used in forensic and analytical standards.