Naproxen Sodium API
Naproxen sodium is an NSAID analgesic and anti-inflammatory agent featuring an aromatic heterocyclic naphthalene structure with nitrogen functionality, classified under HTS 2933.99.55.90. Used primarily for pain relief and fever reduction affecting the central nervous system.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-packaged for retail veterinary use
Medicaments for veterinary use in measured doses classified in Chapter 30.
If classified primarily by carboxylic acid function
Chapter notes require classification by last occurring heading (heterocyclic takes precedence).
If imported as carboxamide intermediate
Synthetic organic chemicals by functional group if not final drug compound.
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Import Tips & Compliance
• Include DEA import permit if precursor chemicals are involved in synthesis
• Ensure ICH Q7 GMP compliance documentation for API manufacturing
• Label shipments clearly as 'Bulk Drug Substance - For Further Processing'
Related Products under HTS 2933.99.55.90
Ibuprofen USP Powder
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) classified under HTS 2933.99.55.90 as an aromatic heterocyclic compound primarily affecting the central nervous system as an analgesic, antipyretic, and anti-inflammatory agent. It contains a nitrogen hetero-atom in its propionic acid derivative structure.
Diclofenac Sodium Bulk Powder
Diclofenac sodium, an NSAID with indole acetic acid structure containing nitrogen hetero-atoms, is classified under HTS 2933.99.55.90 as a CNS-affecting analgesic and anti-inflammatory drug. The aromatic heterocyclic ring determines its Chapter 29 classification.
Ketoprofen Pharmaceutical Grade
Ketoprofen is a propionic acid derivative NSAID with aromatic heterocyclic benzophenone structure containing nitrogen, classified under HTS 2933.99.55.90 for its analgesic, antipyretic, and anti-inflammatory effects on the central nervous system.
Piroxicam Bulk Drug Substance
Piroxicam, an oxicam-class NSAID with benzothiazine heterocyclic nitrogen structure, is classified under HTS 2933.99.55.90 as a CNS-affecting analgesic, antipyretic, and nonhormonal anti-inflammatory agent.
Indomethacin Pharmaceutical Powder
Indomethacin, an indole acetic acid NSAID with nitrogen-containing heterocyclic structure, is classified under HTS 2933.99.55.90 as an analgesic and potent anti-inflammatory drug primarily affecting the CNS.
Celecoxib Active Pharmaceutical Ingredient
Celecoxib, a COX-2 selective NSAID with pyrazole heterocyclic ring containing nitrogen hetero-atoms, falls under HTS 2933.99.55.90 as an aromatic drug primarily affecting the CNS as an analgesic and anti-inflammatory agent.