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HSChapter 29
U.S. imports of amino-acids and esters with one oxygen function (nesoi) (HS 292249) totaled $42.8M in July 2026, traded with 37 countries.
Importers of Amino-Acids and Esters with One Oxygen Function (NESOI) paid $5.0M in duties in July 2026 — an effective duty rate of 20% on $25.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Amino-Acids and Esters with One Oxygen Function (NESOI) imports of $42.8M in July 2026 ran 23% below the year-to-date monthly average of $55.4M.
Last updated: July 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.
584 shipments/mo
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 · $42.8M of $86.4M
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ImportsExports
Imports
$42.8MYoY · Pro
Exports
$18.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 2922494950 | Amino Acids, Non-Aromatic, NESOI | $21.5M | 9.59% | 45.65% | $2.1M |
| 2922498000 | Non-Aromatic Esters of Amino-Acids and Deriv Etc | $11.9M | 13.31% | 70.52% | $1.6M |
| 2922494300 | Glycine (Aminoacetic Acid) | $4.7M | 13.56% | 99.94% | $634K |
| 2922494910 | Alanine | $1.8M | 28.03% | 89.70% | $517K |
| 2922493700 | Arom Amino-Acids Etc(Ex Prod in U.s.nt 3 Sect 6) | $1.3M | 5.91% | 43.45% | $79K |
| 2922491000 | M-Aminobenzoic Acid, Technical; (Paba), Etc. | $726K | 10.76% | 56.84% | $78K |
| 2922494915 | L-Aspartic Acid | $398K | 11.95% | 40.91% | $48K |
| 2922493000 | Arom Amino-Acids Etc of Prod in U.s.note 3 Sect 6 | $272K | 17.16% | 66.57% | $47K |
| 2922492600 | Aromatic Amino-Acids Etc for Use As Drugs | $141K | 2.99% | 23.70% | $4K |
| 2922496000 | 3-Aminocrotonic Acid, Methyl Ester; Etc. | $2K | 0.00% | 0.00% | -- |
| 2922490500 | (R)-A-Aminobenzeneacetic Acid | $0 | -- | -- | -- |
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.
Imports · July 2026
origin
China and India together supply 64% of it.
customs district
destination
entry
rate provision · imports
37.8% enters free of duty; the effective duty rate is 11.81%.