HS Code for N-phenethyl-4-piperidone

N-phenethyl-4-piperidone (NPP) is classified under HS code 2933.37. This classification is determined by its molecular structure as a heterocyclic compound containing an unfused pyridine ring. Chapter 29 covers organic chemicals, and heading 2933 is reserved for heterocyclic compounds with nitrogen hetero-atom(s) only. Subheading 2933.37 was specifically introduced to the Harmonized System to provide better monitoring of this substance, as it is a primary precursor in the illicit manufacture of fentanyl and its analogues. The classification follows GRI 1, as the chemical name and structure are explicitly described in the subheading text. Because it contains a piperidone structure (a hydrogenated pyridine ring), it falls under the group of compounds with an unfused pyridine ring.

Products Included

• N-phenethyl-4-piperidone (NPP)
• 1-phenethylpiperidin-4-one
• Chemical intermediates for fentanyl synthesis
• NPP hydrochloride salts

Common Misclassification

NPP is sometimes misclassified under 2933.33, which is the code for fentanyl and its derivatives like alfentanil or sufentanil. While NPP is used to make these substances, it is a precursor and not the drug itself. It may also be confused with 2933.39, which is the residual category for other pyridine derivatives. However, since the 2017 HS amendments, 2933.37 is the mandatory specific code for NPP to facilitate international trade monitoring and regulatory compliance.

FAQ

What is the HS code for N-phenethyl-4-piperidone?

The specific HS code for N-phenethyl-4-piperidone (NPP) is 2933.37.

Why does NPP have its own specific HS code?

It was assigned a specific code to help international authorities monitor the trade of precursor chemicals used in the production of controlled substances.