Harmonized System
U.S. imports of Hydantoin (Glycolylurea) and Its Derivatives (HS 293321) totaled $994K in August 2026, imported from 15 countries.
Importers of Hydantoin (Glycolylurea) and Its Derivatives paid $83K in duties in August 2026, an average duty rate of 8.39% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Hydantoin (Glycolylurea) and Its Derivatives imports of $994K in August 2026 ran 13% below the year-to-date monthly average of $1.1M.
Last updated: August 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.
13 import shipments a month
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.
Subheading 12 of 27 in heading 2933
Subheading 293321 · $994K of $493.3M
Trade Directory
List your company under HS 293321 — Hydantoin (Glycolylurea) and Its Derivatives, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2933210000 | Hydantoin and Its Derivatives | $994K | 8.39% | 77.48% | $83K |
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 | $484K |
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
$994KYoY · free account
Exports
$484KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $12.6M of Hydantoin (Glycolylurea) and Its Derivatives and exported $8.1M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Taiwan and China together supply 91% of it. Israel pays 15.1% duty; India 2.6%.
customs district
destination
entry
rate provision · imports
22.5% enters free of duty; duty collected equals 8.39% of imports for consumption.