Butyrolactam (2-Pyrrolidone) from Germany
2-Pyrrolidone contains oxygen in lactam structure (five-membered ring), used in pharmaceuticals and polymers. Dual O/N heteroatoms but oxygen heading applies. HTS 2932.99.90 classification.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Lactam vs amide distinction critical; cyclic lactam qualifies as heterocycle
• Hygroscopic; sealed packaging maintains purity specs
• NMP substitute; end-use statements distinguish applications