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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pyridine ring remains aromatic (unhydrogenated)
Hydrogenation state determines specific piperidone vs pyridine subheading.
Not sure which classification is right?
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Import Tips & Compliance
• Customer qualification letter specifying synthetic route using NPP required for DEA
• GMP certificate if for API production; otherwise research grade documentation
• Verify no prohibited downstream products in import declaration
Related Products under HTS 2933.37.00.00
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.
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.