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Search a US HTS code, an ECCN, or words from the official description. Each result is either the import schedule or the Commerce Control List, with the release and the source it came from.

Not legal advice. Tariffkit is a free research tool. It quotes HTS rate text and ECCN control text as published by the official sources linked here. It does not classify an item, does not apply rulings, and does not calculate duty. Verify the cited release with those sources and with counsel before you rely on it.

Searched the HTS index. This query is an HTS code.

HTS

2026HTSRev19 · effective 09/15/2026

HTS

2933.53.00.00

2933 Heterocyclic compounds with nitrogen hetero-atom(s) only:
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure:

Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN); salts thereof

Units: kg

General: Free
Special: Blank in the official export
Other: 50%

2026HTSRev19 · effective 09/15/2026

USITC HTS exportList for this linehts.usitc.gov
USITC release recordhts.usitc.gov

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/hts/2933.53.00.00

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