1-Phenyl-3-pyrazolidinone Drug Intermediate
1-Phenyl-3-pyrazolidinone is a hydrazine derivative used as an intermediate in the synthesis of anti-inflammatory drugs such as phenylbutazone. It is a chemically defined organic compound with a pyrazolidinone ring. This product falls under tariff item 2928.00.00 as an organic derivative of hydrazine, given its hydrazine-based structure.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is considered a heterocyclic compound with nitrogen hetero-atom(s)
The pyrazolidinone ring contains nitrogen atoms, which could fall under heading 29.33 for heterocyclic compounds; chapter note 3 would then apply.
If the product is considered a nucleic acid or other heterocyclic compound
The ring structure may be viewed as a heterocyclic compound, potentially classifiable under heading 29.34.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the product's end use as a drug intermediate, which may affect classification under chapter 29 versus other chapters
• Provide a detailed chemical structure and synthesis pathway for CBSA review
• Check if the product is subject to controlled substances regulations if used in pharmaceutical manufacturing
Related Products under Tariff item 2928.00.00
1,1-Diphenyl-2-picrylhydrazyl
1,1-Diphenyl-2-picrylhydrazyl (DPPH) is a stable free radical used as an antioxidant assay standard in research. It is a chemically defined organic compound with a hydrazine derivative structure. This product falls under tariff item 2928.00.00 as an organic derivative of hydrazine.
1-Phenyl-3-pyrazolidinone (Phenidone)
1-Phenyl-3-pyrazolidinone (Phenidone) is a cyclic hydrazine derivative with an aromatic phenyl substituent. It is chemically defined and used as a photographic developer and intermediate. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine, with the aromatic ring not affecting classification.
2,4-Dinitrophenylhydrazine
2,4-Dinitrophenylhydrazine (DNPH) is a dinitrated phenylhydrazine derivative, chemically defined, used for aldehyde and ketone detection. It is a hydrazine derivative with nitro groups, which are not considered nitrogen functions per Chapter 29 Note 4. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine.
4-Nitrophenylhydrazine
4-Nitrophenylhydrazine is a nitrated derivative of phenylhydrazine, a chemically defined organic compound. It is used in carbonyl compound detection and synthesis. As a hydrazine derivative, it falls under tariff item 2928.00.00, with the nitro group not affecting classification per Chapter 29 Note 4.
Acetohydroxamic Acid
Acetohydroxamic acid is a synthetic organic derivative of hydroxylamine used primarily as a pharmaceutical intermediate and for urolithiasis treatment. It is a chemically defined organic compound with a hydroxamic acid group. This product falls under tariff item 2928.00.00 as an organic derivative of hydroxylamine.
Acetohydroxamic Acid API
Acetohydroxamic acid is a hydroxylamine derivative used as an active pharmaceutical ingredient in medications for urinary tract infections. It is a chemically defined organic compound with a hydroxamic acid group. This product falls under tariff item 2928.00.00 as an organic derivative of hydroxylamine.