Procainamide Hydrochloride
Procainamide hydrochloride is an aromatic cyclic amide derivative used as an antiarrhythmic agent to treat irregular heartbeats. It falls under HTS 2924.29.71.00 as a chemically defined aromatic cyclic amide product listed in additional U.S. note 3 to section VI. This classification applies to its carboxyamide-function structure and pharmaceutical-grade purity.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing a phenothiazine ring system
Phenothiazine derivatives with amide functions are classified under heading 2933 for heterocyclic compounds last in numerical order.
If imported as finished tablets or capsules
Medicaments in dosage form fall under Chapter 30, regardless of the API's chemical classification.
If not specifically listed in additional U.S. note 3
Other aromatic cyclic amides not meeting note 3 criteria classify under the general subheading.
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Import Tips & Compliance
• Obtain FDA Drug Master File and ensure compliance with US pharmacopeia standards for active pharmaceutical ingredients
• Provide certificate of analysis confirming purity >99% and absence of impurities to avoid reclassification
• Declare as bulk API only; finished dosage forms may require different documentation under Chapter 30
Related Products under HTS 2924.29.71.00
Lidocaine Hydrochloride
Lidocaine hydrochloride is a local anesthetic and aromatic amide compound used for nerve block and topical anesthesia. Classified under HTS 2924.29.71.00 due to its cyclic amide structure and inclusion in additional U.S. note 3 to section VI. It's a separate chemically defined organic compound meeting chapter requirements.
Bupivacaine Hydrochloride
Bupivacaine hydrochloride is a long-acting local anesthetic amide used in spinal and epidural anesthesia. It qualifies for HTS 2924.29.71.00 as an aromatic cyclic amide derivative specified in additional U.S. note 3. The classification reflects its primary carboxyamide-function chemical structure.
Prilocaine Hydrochloride
Prilocaine hydrochloride is an amino-amide local anesthetic used in dental and minor surgical procedures. Falls under HTS 2924.29.71.00 as a chemically defined aromatic cyclic amide per additional U.S. note 3. Its classification follows chapter rules for carboxyamide-function compounds.
Mepivacaine Hydrochloride
Mepivacaine hydrochloride is an amide-type local anesthetic for infiltration and nerve block anesthesia. Classified in HTS 2924.29.71.00 as an aromatic cyclic amide product described in additional U.S. note 3 to section VI. Meets criteria for separate chemically defined compounds.
Articaine Hydrochloride
Articaine hydrochloride is a unique thiophene-based amide local anesthetic used primarily in dentistry. It qualifies for HTS 2924.29.71.00 as an aromatic cyclic amide listed in additional U.S. note 3, despite sulfur content not dominating classification. The amide function determines heading placement.
Dibucaine Hydrochloride
Dibucaine hydrochloride is a potent amino-acridine amide anesthetic for spinal anesthesia. Falls under HTS 2924.29.71.00 per additional U.S. note 3 as a chemically defined aromatic cyclic amide compound. Classification prioritizes carboxyamide function over other ring systems.