Caprolactam Modified with Aromatic Groups

Aromatic-modified caprolactam serves as an intermediate for nylon-6 production with enhanced properties. It qualifies for HTS 2933.79.08.00 as an other aromatic lactam under U.S. note 3, featuring nitrogen hetero-atom in heterocyclic ring.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+25.0%31.5%
🇲🇽Mexico6.5%6.5%
🇨🇦Canada6.5%6.5%
🇩🇪Germany6.5%6.5%
🇯🇵Japan6.5%6.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2933.71.00.00Higher: 41.5% vs 31.5%

If containing phenothiazine substructure

Specific 6-membered lactams with named heterocycles classify in 2933.71.

3901.10.10.00Higher: 41.5% vs 31.5%

If partially polymerized into polyamide

Polymerized forms shift to Chapter 39 as polymers of lactams.

Not sure which classification is right?

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Import Tips & Compliance

Submit monomer content analysis; ensure no polymerization has occurred pre-import

Label with full chemical name and impurities list per chapter note requirements

Monitor for anti-dumping duties on caprolactam derivatives from specific countries

Related Products under HTS 2933.79.08.00

6-Acetamidohexanoic Acid

6-Acetamidohexanoic acid is an aromatic-modified lactam derivative used as a chemical intermediate in pharmaceutical synthesis. It falls under HTS 2933.79.08.00 as a heterocyclic compound with nitrogen hetero-atom in lactam form, specifically listed in additional U.S. note 3 to section VI for certain regulated organic compounds.

1-Methyl-2-pyrrolidinone (NMP)

1-Methyl-2-pyrrolidinone (NMP) is a modified aromatic lactam solvent used in electronics and polymer manufacturing. Classified in HTS 2933.79.08.00 due to its nitrogen heterocyclic lactam structure and inclusion in U.S. note 3 for environmental/safety-regulated compounds.

N-Phenyl-2-Pyrrolidone

N-Phenyl-2-pyrrolidone is an aromatic lactam used in dye synthesis and pharmaceuticals. Its classification under HTS 2933.79.08.00 stems from the aromatic substitution on the lactam nitrogen hetero-ring, as specified in note 3.

Epsilon-Caprolactam Aromatic Derivative

This epsilon-caprolactam derivative with aromatic modification acts as a stabilizer in polymer processing. HTS 2933.79.08.00 applies per chapter notes for other aromatic lactams listed in U.S. note 3.

Quinolactam Derivative

Quinolactam derivative represents fused aromatic lactams used in medicinal chemistry. Classified in HTS 2933.79.08.00 for other aromatic lactams under U.S. note 3.

N-Acetyl-2-Pyrrolidone

N-Acetyl-2-pyrrolidone is a chemically defined acetylated aromatic lactam for solvent applications. HTS 2933.79.08.00 per chapter note (a) and U.S. note 3 listing.