Loprazolam Base
Loprazolam base is a chemically defined organic compound with a pyrimidine ring in its structure, listed by name (INN) under tariff item 2933.55.00. It is a hypnotic agent used primarily as a reference standard or in pharmaceutical research. The compound contains only nitrogen hetero-atoms in its ring system, consistent with Chapter 29 notes.
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 compound is not specifically listed by name and contains a pyrimidine ring
Other heterocyclic compounds with pyrimidine rings not elsewhere specified fall under this residual heading.
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 pure and chemically defined; provide a certificate of analysis to support classification
• Verify whether a controlled substance permit is required from Health Canada before importation
• Declare the correct 8-digit code 2933.55.00 on your customs documentation
Related Products under Tariff item 2933.55.00
Loprazolam Ethanesulfonate
Loprazolam ethanesulfonate is a salt of loprazolam (INN), a pyrimidine-containing heterocyclic compound. Under Chapter 29, salts of named organic compounds are classified with the parent compound. The salt retains the nitrogen hetero-atom ring structure and is covered by the 'salts thereof' provision of tariff item 2933.55.00.
Mecloqualone Free Base
Mecloqualone free base is a chemically defined compound with a pyrimidine ring, listed by name (INN) under tariff item 2933.55.00. It is a sedative used as a reference standard in analytical testing. The compound has only nitrogen hetero-atoms in its ring structure, consistent with Chapter 29 classification.
Mecloqualone Mesylate Salt
Mecloqualone mesylate is a salt of mecloqualone (INN), a pyrimidine-containing heterocyclic compound. Chapter 29 notes state that salts of organic compounds are classified with the parent compound. The mesylate salt is covered by the 'salts thereof' provision of tariff item 2933.55.00.
Methaqualone Base (Pure)
Methaqualone base is a chemically defined organic compound with a fused pyrimidine ring, listed by name (INN) under tariff item 2933.55.00. It is a synthetic sedative used primarily as a reference standard. The compound contains only nitrogen hetero-atoms in its ring structure, meeting Chapter 29 requirements.
Methaqualone Hydrochloride
Methaqualone hydrochloride is the salt form of methaqualone (INN), a pyrimidine-containing heterocyclic compound. Under Chapter 29, salts of named compounds are classified with the parent compound. The hydrochloride salt is covered by the 'salts thereof' provision of tariff item 2933.55.00.
Methaqualone Phosphate
Methaqualone phosphate is a stable salt of methaqualone (INN), a pyrimidine-containing heterocyclic compound. Chapter 29 notes classify salts of named organic compounds with the parent compound. The phosphate salt is covered by the 'salts thereof' provision of tariff item 2933.55.00.