Succinimide

Succinimide is a five-membered cyclic imide used in pharmaceutical synthesis and as a corrosion inhibitor. Classified under HTS 2924.29.95.00 as an 'other' cyclic amide/imide. Key intermediate for N-bromosuccinimide (NBS) brominating agent.

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.

2925Lower: 13.7% vs 31.5%

If derivatized as hydantoin

Hydantoin derivatives have specific provisions in imine/imide headings.

3808.94.50Lower: 30% vs 31.5%

If used as pesticide intermediate

Pesticide-specific chemicals shift to chapter 38.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Declare intended use as reagent vs additive; provide melting point specs (125-128°C); bulk requires proper ventilation labeling

Related Products under HTS 2924.29.95.00

Diketopiperazine

Diketopiperazine is a cyclic amide formed by the condensation of two amino acids, featuring a six-membered ring with two amide groups. It falls under HTS 2924.29.95.00 as a cyclic amide derivative not specified elsewhere in the heading. Commonly used as a peptide synthesis intermediate in pharmaceutical manufacturing.

N-Acetylpiperazine

N-Acetylpiperazine is a cyclic amide derivative where an acetyl group is attached to the nitrogen of piperazine, a six-membered heterocyclic ring. Classified under HTS 2924.29.95.00 as an 'other' cyclic amide not covered by principal headings. Used as an intermediate in pharmaceutical synthesis for drugs like ofloxacin.

2-Pyrrolidone (Pyrrolidin-2-one)

2-Pyrrolidone is a five-membered cyclic amide (lactam) widely used as a solvent in polymer manufacturing and pharmaceutical formulations. It qualifies for HTS 2924.29.95.00 as a cyclic amide derivative outside principal named compounds. Known for its high boiling point and water miscibility.

Caprolactam

Caprolactam is a seven-membered ring lactam serving as the monomer for nylon-6 polymer production. It falls under HTS 2924.29.95.00 as an 'other' cyclic amide not principal-named. Global production exceeds millions of tons annually for synthetic fiber manufacturing.

N-Methylpyrrolidone (NMP)

N-Methyl-2-pyrrolidone (NMP) is an N-substituted cyclic amide used as a high-performance solvent in electronics, petrochemicals, and paint strippers. Classified in HTS 2924.29.95.00 as a cyclic amide derivative. Subject to EPA regulations due to reproductive toxicity concerns.

Ethosuximide

Ethosuximide is a cyclic amide derivative used as an anticonvulsant medication for absence seizures. It features a succinimide ring structure qualifying it for HTS 2924.29.95.00 as 'other' cyclic amide. Supplied as pharmaceutical API in bulk powder form.