Phenylephrine HCl
Phenylephrine hydrochloride is a sympathomimetic amine and hydantoin derivative used as a nasal decongestant in cold and allergy medications. It falls under HTS 2933.21.00.00 as a derivative of hydantoin, a heterocyclic compound containing an unfused imidazole ring. This classification applies to its chemically defined organic structure meeting Chapter 29 requirements.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when imported as finished tablets or capsules
Medicinal formulations containing the active ingredient are classified in Chapter 30 based on pharmaceutical dosage form
If structure interpreted as other nitrogen heterocyclic compound
Alternative heterocyclic classification if imidazole ring identification disputed
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Import Tips & Compliance
• Provide Certificate of Analysis (CoA) verifying chemical purity and structure as hydantoin derivative,Comply with FDA import requirements for bulk pharmaceuticals including Drug Master File registration,Avoid misclassification as finished dosage forms which fall under Chapter 30
Related Products under HTS 2933.21.00.00
Methylethylketone Peroxide Stabilized with Hydroxypropyl Methacrylate
This is a hydantoin-structured curing agent used in polymer composites and gelcoat resins, stabilized for safe transport. Classified under HTS 2933.21.00.00 due to its hydantoin core meeting the unfused imidazole ring definition in Chapter 29 notes. The stabilizer qualifies under note (f) for preservation.
Dimethylol Propylene Urea
A hydantoin derivative used as a formaldehyde-free crosslinking agent in textile finishing and paper treatment. Falls under HTS 2933.21.00.00 as a chemically defined compound with unfused imidazole ring structure. Meets Chapter 29 criteria for separate organic compounds.
5,5-Diphenylhydantoin (Phenytoin Base)
The active pharmaceutical base form of the anticonvulsant phenytoin, a classic hydantoin derivative. Classified under HTS 2933.21.00.00 for its unfused imidazole ring structure as a separate chemically defined organic compound per Chapter 29 note (a).
Nitroso-Dimethylol Urea
A hydantoin derivative used as a slow-release nitrogen source in agricultural applications and slow-cure resins. Meets HTS 2933.21.00.00 criteria as a derivative containing unfused imidazole ring, chemically defined per Chapter 29.
Allantoin USP
Allantoin is a hydantoin derivative used in cosmetics, pharmaceuticals, and wound healing products for its soothing properties. Classified under HTS 2933.21.00.00 as it contains the unfused imidazole ring structure meeting Chapter 29 definitions for separate organic compounds.
Methone (5,5-Dimethylhydantoin)
Methone serves as an intermediate in pharmaceutical synthesis and polymer modification, featuring the core hydantoin structure. Falls under HTS 2933.21.00.00 per Chapter 29 classification for unfused imidazole ring compounds.