Clobazam Working Standard
> Clobazam Working Standard is a high-purity reference material used for routine HPLC assay calibration and stability testing in quality control laboratories. It is a separate chemically defined compound, specifically clobazam, containing impurities only as permitted by Chapter 29 Note 1(a). As a lactam, it falls under tariff item 2933.72.00.
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 standard is not specifically clobazam but another lactam
Other heterocyclic compounds with nitrogen hetero-atoms only.
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
• > Clearly label the product as a laboratory reference standard, not for human use, to avoid confusion with pharmaceutical products
• Provide a certificate of analysis showing the purity and impurity profile
• If the standard is shipped in small quantities, ensure the value is accurately declared to avoid customs delays
Related Products under Tariff item 2933.72.00
Clobazam Anhydrous Technical Grade
> Clobazam Anhydrous Technical Grade is a technical-grade anhydrous form of the pharmaceutical compound clobazam, used as an intermediate in industrial pharmaceutical synthesis. It is a separate chemically defined organic compound containing a nitrogen hetero-atom ring, meeting the criteria of Chapter 29 Note 1(a). As a lactam, it is specifically named under tariff item 2933.72.00.
Clobazam API Micronized
> Clobazam API Micronized is a micronized active pharmaceutical ingredient of clobazam, a 1,5-benzodiazepine derivative, processed to improve bioavailability in tablet formulations. It is a pure, chemically defined heterocyclic compound with a nitrogen hetero-atom ring and a lactam structure, directly named under tariff item 2933.72.00. The micronization does not alter its chemical identity.
Clobazam USP Powder
> Clobazam USP Powder is a pharmaceutical-grade clobazam powder that meets United States Pharmacopeia standards, used as an active ingredient in drug formulations. It is a 1,5-benzodiazepine derivative and a lactam, classified as a separate chemically defined heterocyclic compound with nitrogen hetero-atoms only. This product is specifically named under tariff item 2933.72.00.
Methyprylon Synthesis Intermediate
> Methyprylon Synthesis Intermediate is a high-purity chemical intermediate used in research synthesis of piperidinedione analogs. It is a separate chemically defined organic compound with a nitrogen hetero-atom ring, specifically a lactam, and is directly named under tariff item 2933.72.00. The product meets Chapter 29 Note 1(a) criteria.
Methyprylon USP Reference Standard
> Methyprylon USP Reference Standard is a certified reference standard of the piperidinedione sedative-hypnotic methyprylon, used for quality control and analytical testing in pharmaceutical laboratories. It is a separate chemically defined compound, specifically named under tariff item 2933.72.00, and meets the criteria of Chapter 29 Note 1(a). The product is a lactam with a nitrogen hetero-atom ring.