Piperidin-2-One from Germany
Piperidin-2-one (δ-valerolactam) is a six-membered lactam ring used in organic synthesis and polymer chemistry. Classified under HTS 2933.79.85.00 as other lactams with nitrogen hetero-atom only. Distinguish from piperidine bases by amide functionality.
Duty Rate — Germany → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit FTIR spectra confirming amide C=O stretch at 1650-1680 cm⁻¹ vs amine C-N
• Prevent dual classification with 2933.33 (phenothiazine derivatives) by confirming no aromatic rings
• Document <0.1% piperidine free base to avoid amine contamination reclassification