Valerolactam (5-Methyl-2-Pyrrolidone)
Valerolactam is a substituted five-membered lactam used in polymer synthesis and as pharmaceutical intermediate. HTS 2933.79.85.00 covers this alkyl-substituted lactam not specifically named in prior subheadings. Meets nitrogen-heteroatom only heterocyclic criteria.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| π¨π³China | 6.5% | +118.5% | 125% |
| π²π½Mexico | 6.5% | +93.5% | 100% |
| π¨π¦Canada | 6.5% | +93.5% | 100% |
| π©πͺGermany | 6.5% | +8.5% | 15% |
| π―π΅Japan | 6.5% | +8.5% | 15% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing additional heteroatoms beyond nitrogen
Chapter notes limit 2933 to nitrogen-only heteroatoms; oxygen/sulfur requires different heading.
If imported as ring-opened gamma-valeric amide
Lactam specificity requires closed cyclic amide; hydrolysis products become acyclic.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code β and can price the duty on it in the same conversation.
Import Tips & Compliance
β’ Include synthetic route documentation confirming lactam ring integrity vs acyclic amide formation
β’ Verify no halogen/sulfur content per notes to headings 2930-2931 exclusion criteria
Related Products under HTS 2933.79.85.00
Caprolactam
Caprolactam is a cyclic amide (lactam) with a six-membered ring containing a nitrogen hetero-atom, used primarily as a monomer in the production of nylon 6 polymer. It falls under HTS 2933.79.85.00 as a lactam that is neither specifically named in prior subheadings nor a beta-lactam antibiotic structure. This chemically defined heterocyclic compound with nitrogen hetero-atom only meets Chapter 29 requirements for classification.
2-Pyrrolidone (2-Pyrrolidinone)
2-Pyrrolidone is a five-membered lactam ring compound used as a high-boiling solvent in pharmaceuticals, electronics, and polymer manufacturing. Classified under HTS 2933.79.85.00 as an other lactam with nitrogen hetero-atom only, not specifically enumerated elsewhere. Its cyclic amide structure distinguishes it from acyclic amides.
Epsilon-Caprolactam Technical Grade
Technical grade epsilon-caprolactam contains 95-99% purity with stabilizers, used in industrial nylon production. Falls under HTS 2933.79.85.00 as other lactams per chapter notes allowing stabilizers for preservation/transport. Remains classified as chemically defined compound despite minor impurities.
N-Methyl-2-Pyrrolidone Stabilized
N-Methyl-2-pyrrolidone (NMP) is a methylated lactam used as solvent in battery production and paint strippers, here with anti-oxidant stabilizer. Classified HTS 2933.79.85.00 as other lactams (distinct from unsubstituted 2933.79.29). Stabilizer permitted per chapter note (f) for preservation.
Piperidin-2-One
Piperidin-2-one (Ξ΄-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.
Caprolactam with Anti-Caking Agent
Caprolactam powder treated with silicon dioxide anti-caking agent for bulk handling and transport. Permitted under HTS 2933.79.85.00 per chapter note (g) for identification/safety additives not rendering specific use suitability. Maintains principal lactam classification.