ANPP with Stabilizer for Transport
This form of 4-anilino-N-phenethylpiperidine includes a stabilizer necessary for preservation during transport, as allowed under Chapter 29 note (f). It retains classification in HTS 2933.36.00.00 as the core compound is a chemically defined piperidine derivative with nitrogen hetero-atoms only. Used in bulk for chemical synthesis.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other heterocyclic nitrogen compounds with additional functions
Later numerical headings in 2933 take precedence for compounds with mixed characteristics.
If saturated acyclic hydrocarbons dominate structure
Chapter 29 excludes acyclic hydrocarbons (Chapter 27/29 boundary); phenethyl chain could trigger if not heterocyclic dominant.
If reaction accelerators with catalysts
Formulations as reaction accelerators exclude from pure Chapter 29 compounds.
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Import Tips & Compliance
• Document stabilizer as transport-only additive per Chapter 29 note (f) to avoid reclassification
• Use UN-approved packaging for hazardous goods
• Pre-clear with CBP for precursor chemical scrutiny
Related Products under HTS 2933.36.00.00
4-Anilino-N-phenethylpiperidine (ANPP) Pure Compound
4-Anilino-N-phenethylpiperidine (ANPP) is a synthetic heterocyclic compound containing an unfused piperidine ring (hydrogenated pyridine) with nitrogen hetero-atom, substituted by anilino and phenethyl groups. It falls under HTS 2933.36.00.00 as a chemically defined organic compound per Chapter 29 note (a). This pure form is used primarily as a pharmaceutical intermediate.
ANPP Pharmaceutical Intermediate Powder
ANPP powder is a high-purity 4-anilino-N-phenethylpiperidine used as a key intermediate in synthesizing opioid analgesics like fentanyl. Classified under HTS 2933.36.00.00 due to its specific heterocyclic structure with nitrogen-only hetero-atoms in a piperidine ring. Meets Chapter 29 requirements for chemically defined organic compounds.
High-Purity ANPP for API Synthesis
High-purity ANPP (≥99%) is a piperidine-based heterocyclic compound specifically named in HTS 2933.36.00.00, containing an unfused hydrogenated pyridine ring with anilino and N-phenethyl substituents. Essential precursor in active pharmaceutical ingredient production, qualifying under Chapter 29 for separate chemically defined compounds.
ANPP Dissolved in Safety Solvent
ANPP solution in a solvent adopted solely for safety/transport reasons, per Chapter 29 note (e), maintaining classification under HTS 2933.36.00.00 as the principal heterocyclic piperidine compound. The solvent does not adapt it for specific use beyond general chemical handling.
ANPP with Anti-Dusting Agent
4-Anilino-N-phenethylpiperidine enhanced with an anti-dusting agent for safety/identification, allowable under Chapter 29 note (g), classified in HTS 2933.36.00.00. The addition does not render it suitable for specific use, preserving its status as a heterocyclic nitrogen compound.
Research-Grade ANPP Chemical
Research-grade 4-anilino-N-phenethylpiperidine (CAS 1609-66-1) is a pure heterocyclic piperidine derivative under HTS 2933.36.00.00, with nitrogen hetero-atoms only in the unfused ring structure. Supplied for laboratory synthesis of piperidine-based pharmaceuticals.