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U.S. exports of hydantoin (glycolylurea) and its derivatives (HS 293321) totaled $1.1M in July 2026.
Importers of Hydantoin (Glycolylurea) and Its Derivatives paid $33K in duties in July 2026 — an effective duty rate of 14% on $243K in dutiable value, based on actual customs collections rather than the published tariff schedule. Hydantoin (Glycolylurea) and Its Derivatives imports of $243K in July 2026 ran 79% below the year-to-date monthly average of $1.2M.
Last updated: July 2026 dataHydantoin and its derivatives — classified entirely within the single US tariff line 2933210000 — are five-membered imidazolone-ring compounds with broad pharmaceutical and industrial applications, including anticonvulsant drugs (phenytoin being the most prominent derivative), antimicrobial agents, and chemical intermediates for personal care formulations. China is the leading US import source, followed by Israel and Taiwan, with Spain and India also supplying the market; Israel's presence reflects its established specialty pharmaceutical chemical sector. Derivatives intended for use as active pharmaceutical ingredients are subject to FDA cGMP requirements and foreign establishment registration. Admissibility and classification are complex; consult a licensed customs broker or the relevant agency before importing.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
15 shipments/mo
Yes — the US schedule does not subdivide hydantoin derivatives further at the 10-digit level, so all compounds in this series, from industrial-grade hydantoin used in personal care chemistry to pharmaceutical-grade intermediates for anticonvulsant synthesis, are classified under 2933210000. End-use determines the applicable regulatory regime (FDA for drug applications) but does not change the tariff classification.
Hydantoin derivatives originating in China may be subject to Section 301 tariffs applicable to Chapter 29 organic chemicals. Importers should check the current Section 301 product list and any active exclusions for this specific compound with a licensed customs broker, as the scope and exclusion status of chemical products under Section 301 can be updated periodically.
HSChapter 29
Subheading 16 of 27 in heading 2933
Subheading 293321 · $243K of $482.5M
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2933210000 | Hydantoin and Its Derivatives | $243K | 13.69% | 100.00% | $33K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2933210000 | Hydantoin (Glycolylurea) and Its Derivatives | $1.1M |
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.
ImportsExports
Imports
$243KYoY · Pro
Exports
$1.1MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Japan and Mexico together take 69% of it.
customs district
origin
entry
rate provision · imports
the effective duty rate is 13.69%.