HS 2933-37 – N-Phenethyl-4-piperidone (NPP)

Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026

N-Phenethyl-4-piperidone (NPP)

10-digit tariff items

• 2933-37-00-00 – N-Phenethyl-4-piperidone (NPP) (MFN Free)