Deuterated Piperidine-d11
Deuterated Piperidine-d11 is piperidine in which all 11 hydrogen atoms are replaced by deuterium, an isotope of hydrogen. It is used primarily as a solvent or reference standard in NMR spectroscopy. Under Chapter Note 1(a), isotopically substituted organic compounds are classified as the same chemically defined compound as the non-deuterated form, so it falls under tariff item 2933.32.00.
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 deuterium content exceeds 99.9% and the product is presented as an isotope compound
Chapter 29 Note 1(a) excludes goods classifiable in heading 28.45 (isotopes) from Chapter 29, so highly enriched deuterium compounds may fall there.
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
• Ensure the product is labeled as piperidine-d11 with isotopic purity stated on the commercial invoice
• Declare the chemical name and CAS number to avoid delays
• Verify if the deuterated form requires an import permit under Canada's controlled substances regulations
Related Products under Tariff item 2933.32.00
1-(2-Methoxyethyl)piperidine
1-(2-Methoxyethyl)piperidine is an ether-substituted piperidine used as a synthetic intermediate. Its core piperidine ring structure qualifies it under tariff item 2933.32.00, as the subheading covers piperidine and its salts, including derivatives with substituents on the ring. It is a chemically defined organic compound.
1-Benzylpiperidine
1-Benzylpiperidine is an N-protected piperidine derivative used in medicinal chemistry. The unfused piperidine ring structure places it under tariff item 2933.32.00, as the subheading covers piperidine and its salts, including N-substituted derivatives. It is a chemically defined organic compound.
1-Methylpiperidine
1-Methylpiperidine is an N-alkylated derivative of piperidine, a saturated six-membered heterocyclic amine. It is used as a base in organic synthesis and as a solvent. It falls under tariff item 2933.32.00 as a piperidine derivative, covered by the subheading for piperidine and its salts.
3,5-Dimethylpiperidine
3,5-Dimethylpiperidine is a dialkylated piperidine derivative used in chiral ligand synthesis. As a simple substituted piperidine, it falls under tariff item 2933.32.00, which covers piperidine and its salts, including alkyl-substituted derivatives. It is a chemically defined organic compound.
4-Aminopiperidine Dihydrochloride
4-Aminopiperidine Dihydrochloride is a substituted piperidine salt used in the synthesis of pharmaceutical intermediates. It features the core piperidine ring structure and is a salt, so it falls under tariff item 2933.32.00, which covers piperidine and its salts. The amino group does not change the classification.
4-Phenylpiperidine Hydrochloride
4-Phenylpiperidine Hydrochloride is a key intermediate for opioid analgesics like pethidine. The core piperidine ring structure qualifies it for tariff item 2933.32.00 as a piperidine salt, despite the phenyl substituent. It is a chemically defined organic compound.