Carbostyril (4-Quinolone Derivative)
Carbostyril derivatives serve as intermediates for aromatic amide drugs like fluoroquinolones. Classified under HTS 2924.29.62.50 as 'other' aromatic cyclic amides used in pharmaceuticals. Structure contains fused cyclic amide ring per chapter 29 specifications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If quinoline base emphasized
Quinoline heterocycles in 2933.49 over amide.
If complex organic derivative
Other organic derivatives in 2942 if not fitting prior headings.
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The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Register as Type II DMF for intermediates
• Declare synthetic route to avoid dual-use scrutiny
Related Products under HTS 2924.29.62.50
Bupivacaine Hydrochloride
Bupivacaine hydrochloride is an aromatic cyclic amide local anesthetic drug used for nerve blocks and epidurals. Classified under HTS 2924.29.62.50 as 'other aromatic cyclic amide drugs' due to its piperidine ring and carboxyamide group. Meets chapter 29 requirements for chemically defined cyclic amides and derivatives.
Aprindine Hydrochloride
Aprindine hydrochloride is an aromatic cyclic amide antiarrhythmic agent with a benzhydryl structure. It is categorized under HTS 2924.29.62.50 as an 'other' drug in the aromatic cyclic amides section. Fits chapter 29 definitions for chemically pure compounds with amide function.
Prilocaine Hydrochloride
Prilocaine hydrochloride, an amino amide anesthetic with toluidine aromatic structure, is used for dental procedures. Falls in HTS 2924.29.62.50 for other aromatic cyclic amide drugs. Chemically defined per chapter notes, excluding mixtures.
Mepivacaine Hydrochloride
Mepivacaine hydrochloride is an aromatic piperidine amide local anesthetic for infiltration. HTS 2924.29.62.50 applies as other aromatic cyclic amide drug. Conforms to chapter 29 salt classification rules.
Articaine Hydrochloride
Articaine hydrochloride, thiophene-containing aromatic amide, unique for dental anesthesia due to rapid metabolism. Under HTS 2924.29.62.50 as other aromatic amide drug. Cyclic amide with sulfur per organo-sulfur notes exclusion.
Chloroprocaine Hydrochloride
Chloroprocaine hydrochloride, ester-amide hybrid aromatic anesthetic for short procedures. Classified HTS 2924.29.62.50 for amide function dominance. Meets numerical order rule for amides.