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2-Pyrrolidone Aromatic Ester

An ester derivative of 2-pyrrolidone with aromatic modification, used in pharmaceutical formulations. Falls under HTS 2933.79.08.00 as modified aromatic lactam per note 3 and ester classification rules.

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.

2918Lower: 14% vs 31.5%

If carboxylic ester function dominates

Per note 5(A), esters classify with later acid compound if not lactam-specific.

2932.99Lower: 13.7% vs 31.5%

If containing oxygen heteroatoms beyond lactam

Additional ring oxygen shifts to heterocyclic oxygen compounds.

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Import Tips & Compliance

• ,Test for water solubility; solutions may require note 4(d) verification

• Document synthetic route to prove heterocyclic lactam principal structure

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.

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.

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.