U.S. imports of Amino-Acids and Esters with One Oxygen Function (NESOI) (HS 292249) totaled $49.0M in August 2026, imported from 38 countries.
Importers of Amino-Acids and Esters with One Oxygen Function (NESOI) paid $5.7M in duties in August 2026, an average duty rate of 12.22% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Amino-Acids and Esters with One Oxygen Function (NESOI) imports of $49.0M in August 2026 ran 10% below the year-to-date monthly average of $54.6M.
Last updated: August 2026 dataSingapore leads US imports under this broad heading, which spans aromatic and non-aromatic amino acids and their esters not classified elsewhere — including glycine (2922494300), alanine (2922494910), L-aspartic acid (2922494915), and para-aminobenzoic acid (PABA) (2922491000). The heading's pharmaceutical sub-lines (2922492050 and 2922492600) cover aromatic amino acids destined for drug use, where FDA oversight of active pharmaceutical ingredient (API) supply chains adds a compliance layer beyond customs classification. China and India are also significant sources, and Section 301 tariffs may apply to aromatic compounds of Chinese origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
527 import shipments a month
When aromatic amino acids are imported for pharmaceutical use, FDA may require the foreign manufacturer to be registered as a drug establishment and the facility to be listed in FDA's drug registration database. Drug master files (DMFs) may also be relevant if the material is an API or API intermediate. Importers should work with an FDA regulatory consultant in addition to a customs broker.
Aromatic amino acids and esters of Chinese origin are more likely to fall within Section 301 tariff lists than their non-aromatic counterparts, which are often captured in separate basket lines (e.g., 2922494950 or 2922498050). Confirming the compound's aromatic or non-aromatic character — based on its molecular structure — is therefore a critical first step in assessing total landed cost for Chinese-origin shipments.
Subheading 1 of 18 in heading 2922
Subheading 292249 · $49.0M of $136.0M
Trade Directory
List your company under HS 292249 — Amino-Acids and Esters with One Oxygen Function (NESOI), 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 |
|---|---|---|---|---|---|
| 2922498000 | Non-Aromatic Esters of Amino-Acids and Deriv Etc | $19.3M | 11.37% | 91.15% | $2.2M |
| 2922494950 | Amino Acids, Non-Aromatic, NESOI | $17.3M | 11.13% | 54.98% | $1.9M |
| 2922494300 | Glycine (Aminoacetic Acid) | $5.2M | 13.36% | 99.94% | $701K |
| 2922493700 | Arom Amino-Acids Etc(Ex Prod in U.s.nt 3 Sect 6) | $173K | 3.08% | 14.32% | $5K |
| 2922494910 | Alanine | $2.2M | 33.37% | 86.16% | $725K |
| 2922491000 | M-Aminobenzoic Acid, Technical; (Paba), Etc. | $1.5M | 7.05% | 40.07% | $103K |
| 2922492600 | Aromatic Amino-Acids Etc for Use As Drugs | $714K | 0.90% | 3.36% | $6K |
| 2922494915 | L-Aspartic Acid | $162K | 7.25% | 20.51% | $12K |
| 2922493000 | Arom Amino-Acids Etc of Prod in U.s.note 3 Sect 6 | $82K | 32.17% | 85.46% | $26K |
| 2922496000 | 3-Aminocrotonic Acid, Methyl Ester; Etc. | $24K | 10.00% | 100.00% | $2K |
| 2922490500 | (R)-A-Aminobenzeneacetic Acid | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
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
$49.0MYoY · free account
Exports
$17.6MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $665.1M of Amino-Acids and Esters with One Oxygen Function (NESOI) and exported $195.3M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
China and Switzerland together supply 51% of it. China pays 27.0% duty; Switzerland 3.7%.
customs district
destination
entry
rate provision · imports
23.8% enters free of duty; duty collected equals 12.22% of imports for consumption.