4-Phenylpiperidine Hydrochloride
4-Phenylpiperidine hydrochloride is a key intermediate for opioid analgesics like pethidine (meperidine). The core piperidine ring structure qualifies it for HTS 2933.32.5000 as 'other' piperidine salt despite phenyl substitution.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pyridine ring (unsaturated) rather than piperidine
Degree of saturation determines specific subheading within pyridine compounds
If classified as amino acid derivative
Some substituted piperidines may fall under oxygen-function amino compounds
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Import Tips & Compliance
• Obtain DEA import permit as List I chemical (piperidine derivative)
• Provide end-user certificates to importing pharma manufacturers
• Use tamper-evident sealed packaging per DEA security requirements
Related Products under HTS 2933.32.50.00
Piperidine Hydrochloride
Piperidine hydrochloride is the salt form of piperidine, a heterocyclic compound containing an unfused piperidine ring, classified under HTS 2933.32.5000 as 'other' piperidine and its salts. It is commonly used as a chemical intermediate in pharmaceutical synthesis and as a catalyst in organic reactions.
4-Aminopiperidine Dihydrochloride
4-Aminopiperidine dihydrochloride is a substituted piperidine salt used in synthesis of pharmaceutical intermediates like antihistamines. It features the core piperidine ring structure required for HTS 2933.32.5000 classification as 'other' piperidine salts.
1-Methylpiperidine
1-Methylpiperidine is an N-alkylated derivative of piperidine, a saturated six-membered heterocyclic amine fitting HTS 2933.32.5000 as 'other' piperidine compounds. Used as a base in organic synthesis and solvent in chemical manufacturing.
Piperidine-4-Carboxylic Acid
Piperidine-4-carboxylic acid (isonipecotic acid) contains both piperidine ring and carboxylic acid functionality but classifies under HTS 2933.32.5000 per Chapter 29 notes prioritizing heterocyclic structure. Used in synthesis of protease inhibitors.
1-Benzylpiperidine
1-Benzylpiperidine is an N-protected piperidine derivative used in medicinal chemistry. Its unfused piperidine ring structure places it under HTS 2933.32.5000 as 'other' piperidine compound, not classified by benzyl group per Chapter notes.
Piperidine-1-Carboxylic Acid tert-Butyl Ester
Boc-piperidine (piperidine-1-carboxylic acid tert-butyl ester) is a protected piperidine used in peptide synthesis. Classifies under HTS 2933.32.5000 as the ester follows parent piperidine per Chapter 29 ester classification rules.