U.S. imports of Cyclic Amides, Derivatives, and Salts (NESOI) (HS 292429) totaled $57.4M in September 2026, imported from 33 countries.
Importers of Cyclic Amides, Derivatives, and Salts (NESOI) paid $7.5M in duties in September 2026, an average duty rate of 11.38% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: September 2026 dataAcetaminophen (paracetamol, line 2924296210) and lidocaine (diethylaminoacetoxylidide, line 2924295700) are among the highest-profile pharmaceutical actives within this broad heading, which also encompasses dye intermediates, pesticide-use cyclic amides, and specialty carbamates. Switzerland leads supply — reflecting its role as a global hub for innovator and generic pharmaceutical chemical manufacturing — followed by China and India. Given the heading's mix of drug substances, pesticide intermediates, and industrial chemicals, the applicable regulatory pathway at US entry (FDA drug substance, FIFRA, or TSCA) depends entirely on the specific compound and its declared end use.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
588 import shipments a month
The determining factor is the compound's intended use and regulatory status. If the substance is an active pharmaceutical ingredient (API) or drug intermediate destined for a finished drug product, FDA entry procedures apply — including foreign facility registration and, for controlled substances, DEA authorization. If the compound is imported as an industrial chemical with no drug application, TSCA certification is the standard requirement. Importers should document intended use clearly in entry records to avoid reclassification by CBP.
Acetaminophen has its own dedicated 10-digit line (2924296210), and misclassifying it under the broader aromatic cyclic amides NESOI line (2924296250 or 2924296000) can result in duty discrepancies and potential CBP penalties. Additionally, pharmaceutical-grade acetaminophen imports require FDA drug establishment registration from the foreign manufacturer and are subject to FDA port-of-entry examination, so both classification accuracy and regulatory documentation must be in order simultaneously.
Subheading 1 of 8 in heading 2924
Subheading 292429 · $57.4M of $109.6M
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ImportsExports
Imports
$57.4MYoY · free account
Exports
—YoY · free account
12-mo low · imports
Low · free accountOver the twelve months to September 2026, the U.S. imported $748.4M of Cyclic Amides, Derivatives, and Salts (NESOI).
Through September 2026 · exports 11 of 12 months reported. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2924296020 | Aromatic Cyclic Amides (Inc Cyclic Carbamates) Etc | $22.0M |
| 2924299500 | Cyclic Amides and Their Derivatives, NESOI | $4.9M |
| 2924298000 | 2,2-Dimethylcyclopropylcarboxamide | $129K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · September 2026
origin
Switzerland and China together supply 62% of it. China pays 15.5% duty; Japan 0.3%.
customs district
destination
entry
rate provision · imports
28.1% enters free of duty; duty collected equals 11.38% of imports for consumption.