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SITCSection 5
U.S. imports of acyclic aldehydes without other oxygen function (SITC 51621) totaled $8.4M in April 2026, traded with 24 countries.
Importers of Acyclic Aldehydes Without Other Oxygen Function paid $1.3M in duties in April 2026 — an effective duty rate of 17% on $7.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Acyclic Aldehydes Without Other Oxygen Function imports of $8.4M in April 2026 ran 13% above the year-to-date monthly average of $7.4M.
Last updated: April 2026 dataAcyclic aldehydes lacking additional oxygen functionality — including formaldehyde, acetaldehyde, butyraldehyde, and higher aliphatic aldehydes — are foundational feedstocks for resins, plasticizers, flavors, and fragrance chemicals. Formaldehyde, the simplest member, drives demand for urea-formaldehyde and phenol-formaldehyde resins used in wood panels and adhesives, a sector that has seen antidumping activity on downstream products. Acetaldehyde and higher aldehydes serve as intermediates for acetic acid, pyridines, and aroma chemicals, linking this heading to both the food-ingredient and specialty-chemical supply chains.
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Formaldehyde is classified as a known human carcinogen by the EPA and is subject to TSCA reporting requirements, including Chemical Data Reporting (CDR) obligations for importers above threshold volumes. OSHA's permissible exposure limit also affects how receiving facilities must handle bulk shipments. Importers should confirm TSCA inventory status and CDR obligations with their compliance team before the first shipment.
Short-chain aldehydes (C1–C3, such as formaldehyde and propionaldehyde) are primarily industrial resin and chemical synthesis feedstocks. Mid-chain aldehydes (C4–C8, such as butyraldehyde and 2-ethylhexanal) are key plasticizer and solvent intermediates. Long-chain aldehydes (C9+) are predominantly used in fine fragrance and flavor applications, where natural-identical aroma profiles are valued.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| GERMANY | $3.2M | $993K | -$2.2M |
| CHINA | $2.0M | $1.1M | -$850K |
| CANADA | $265K | $1.9M | +$1.6M |
| SWITZERLAND | $1.2M | $517K | -$657K |
| MEXICO | $35K | $1.4M | +$1.4M |
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Monthly import values over time