Clobazam Working Standard
Pharmaceutical working standard Clobazam for routine HPLC assay calibration and stability testing in quality control laboratories. Meets Chapter 29 definition of separate chemically defined compound with impurities. Specifically provided for under HTS 2933.72.00.00 nomenclature.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when permanently incorporated into analytical instrument calibration kit
Parts and accessories of analytical instruments may supersede chemical classification
If supplied in pre-prepared mobile phase solution
Diagnostic or laboratory reagents in solution classify in heading 3822
If other named lactams not specifically listed
Residual provision for other specifically named heterocyclic lactams
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Import Tips & Compliance
• Include chromatograms demonstrating assigned purity value and uncertainty measurements
• Package in amber glass vials with desiccants to maintain stability during ocean freight
• Label 'Not for therapeutic use - analytical reference material only' to prevent FDA drug review
Related Products under HTS 2933.72.00.00
Clobazam USP Powder
Pharmaceutical grade Clobazam powder meeting USP standards, a 1,5-benzodiazepine derivative classified as a heterocyclic compound with nitrogen hetero-atom(s) only under heading 2933. It is used primarily in the synthesis of anti-epileptic medications. This specific chemical falls directly under subheading 2933.72.00.00 as named in the tariff schedule.
Clobazam API Micronized
Micronized Active Pharmaceutical Ingredient (API) form of Clobazam for improved bioavailability in tablet formulations. As a pure chemically defined heterocyclic nitrogen compound (lactam), it qualifies under HTS 2933.72.00.00. Used exclusively as intermediate for epilepsy treatment medications.
Methyprylon USP Reference Standard
Certified USP reference standard of Methyprylon, a piperidinedione sedative-hypnotic, provided for quality control and analytical testing in pharmaceutical labs. Falls under HTS 2933.72.00.00 as specifically named heterocyclic lactam compound. Supplied in precise milligram quantities for calibration purposes.
Clobazam Anhydrous Technical Grade
Technical grade anhydrous Clobazam for industrial pharmaceutical synthesis, containing <99% purity with manufacturing impurities. Classified as chemically defined organic compound under Chapter 29 note (a), specifically named in 2933.72.00.00. Used in bulk API production before final purification.
Methyprylon Synthesis Intermediate
High-purity methyprylon used as chemical intermediate in research synthesis of piperidinedione analogs. Qualifies under Chapter 29 as separate chemically defined heterocyclic nitrogen compound. Directly named in tariff subheading 2933.72.00.00.