Propyphenazone
Propyphenazone is an N-propyl derivative of phenazone used in combination analgesics. It qualifies for HTS 2933.11.00.00 as a direct phenazone derivative with the unfused pyrazole ring structure specified in the heading. Typically imported in crystalline powder form for drug formulation.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for other caffeine-containing heterocyclics
Caffeine and derivatives have later specific subheadings that take precedence per classification note 3.
If emphasizing saturated acyclic ketone function
Ketone-function classification (2914-2915) precedes heterocyclic classification per numerical order rule.
If imported as diagnostic reagent solution
Laboratory reagents containing these compounds in specific formulations fall under diagnostic preparations.
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Import Tips & Compliance
• Submit GC-MS analysis proving derivative relationship to phenazone; ensure GMP-compliant manufacturing certification; watch for EU REACH registration requirements
Related Products under HTS 2933.11.00.00
Phenazone (Antipyrine)
Phenazone, also known as antipyrine, is a pyrazolone derivative used historically as an analgesic and antipyretic. It falls under HTS 2933.11.00.00 as a specific heterocyclic compound containing an unfused pyrazole ring. This chemically defined organic compound is imported in pure form for pharmaceutical manufacturing.
Aminophenazone
Aminophenazone is a derivative of phenazone with an amino group substitution, used in pharmaceutical synthesis. Classified under HTS 2933.11.00.00 due to its status as a phenazone derivative containing the characteristic unfused pyrazole ring. Imported as a high-purity intermediate for analgesic production.
Isopropphenazone
Isopropphenazone, an isopropyl-substituted phenazone derivative, serves as a pharmaceutical intermediate. Falls under HTS 2933.11.00.00 due to its explicit inclusion as a phenazone derivative with pyrazole ring. Used in synthesis of modern NSAIDs.
Phenzone (Phenylethylphenazone)
Phenzone features a phenylethyl group attached to the phenazone structure, used in anti-inflammatory formulations. Classified in HTS 2933.11.00.00 as a phenazone derivative maintaining the core pyrazole ring. Imported for further pharmaceutical processing.
Metamizole Sodium (Analgin)
Metamizole sodium, a water-soluble salt derivative of phenazone, is widely used as a potent analgesic. Though a salt, classified under HTS 2933.11.00.00 per Chapter Note 5(C)(1) with the parent phenazone compound. Imported as white crystalline powder for injection formulations.
Phenazone Salicylate
Phenazone salicylate combines phenazone with salicylic acid for topical analgesic applications. Classified under HTS 2933.11.00.00 following Chapter Note 5(C)(2) with the later-occurring phenazone base. Used in ear drops and compounded prescriptions.