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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| π¨π³China | 6.5% | +25.0% | 31.5% |
| π²π½Mexico | 6.5% | β | 6.5% |
| π¨π¦Canada | 6.5% | β | 6.5% |
| π©πͺGermany | 6.5% | β | 6.5% |
| π―π΅Japan | 6.5% | β | 6.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stabilizer-free pure NMP
Unsubstituted parent lactam has specific subheading; N-alkylation moves to 'other' lactams.
If formulated as organic solvent composite >50% NMP
Composite solvents exceed single compound classification; become Chapter 38 mixtures.
If aqueous solution for specific cleaning applications
Chapter note (d) allows water solutions only if not particularly suited for specific use.
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Import Tips & Compliance
β’ Provide stabilizer certificate confirming <1% addition solely for oxidation prevention per chapter notes
β’ Comply with EPA NMP risk management rules; maintain shipping records proving general chemical use
β’ Differentiate from unsubstituted 2-pyrrolidone via GC-MS confirming N-methyl substitution
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.
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.
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.