N-Phenethyl-4-piperidone (NPP) Pure Chemical
N-Phenethyl-4-piperidone (NPP) is a heterocyclic compound containing an unfused piperidone ring (hydrogenated pyridine derivative) with a phenethyl substituent, precisely matching HTS 2933.37.00.00. This pure chemical form is used primarily as a chemical intermediate in pharmaceutical synthesis. It falls under Chapter 29 as a separate chemically defined organic compound with nitrogen hetero-atom(s) only.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing a quinolizinone ring system instead of piperidone
Other compounds with unfused pyridine rings (hydrogenated) fall under this broader 2933.39 category.
If primarily classified by amino-function rather than heterocyclic structure
Chapter notes prioritize oxygen/nitrogen functions in earlier headings if more specific.
If imported as hydrochloride salt form
Organic salts classified with parent compound per Chapter 29 note 3(C)(1), but verify exact form.
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Import Tips & Compliance
• Verify List I chemical status with DEA; obtain import permit and Letter of Registration before shipment
• Provide detailed chemical analysis certificate confirming purity >98% and structure matching NPP specifications
• Avoid common pitfalls like mislabeling as generic piperidone; precise nomenclature prevents reclassification
Related Products under HTS 2933.37.00.00
NPP Stabilized with Antioxidant
N-Phenethyl-4-piperidone (NPP) with added BHT stabilizer to prevent oxidation during storage and transport, as permitted under Chapter 29 note 2(f). Retains chemical identity as heterocyclic nitrogen compound of 2933.37.00.00. Used in synthesis of opioid receptor compounds and research chemicals.
N-Phenethyl-4-piperidone Ethanol Solution (10%)
10% NPP dissolved in ethanol, qualifying under Chapter 29 note 2(e) as necessary transport solution where solvent doesn't render specific use suitability. Core compound remains N-Phenethyl-4-piperidone of HTS 2933.37.00.00. Used for safe handling in laboratory and industrial synthesis.
NPP Laboratory Research Grade (>99%)
High-purity N-Phenethyl-4-piperidone (>99%) specifically packaged for laboratory research use, but classified by chemical identity under HTS 2933.37.00.00. Heterocyclic piperidone structure with N-phenethyl group. Supplied with CoA verifying NMR/GC purity standards.
N-Phenethyl-4-piperidone with Anti-Dusting Agent
NPP powder treated with silica anti-dusting agent (<0.5%) per Chapter 29 note 2(g) for safe handling and identification. Maintains classification as pure heterocyclic compound HTS 2933.37.00.00. Essential for bulk pharmaceutical intermediate production.
NPP Custom Synthesis Intermediate
Custom-produced N-Phenethyl-4-piperidone for specific pharmaceutical campaigns, verified by HPLC to match HTS 2933.37.00.00 specifications. Contains unfused piperidone ring as core heterocyclic structure. Documented chain of custody for controlled precursor.