U.S. exports of Acyclic, Cyclanic, Cyclenic & Aromatic Ethers and Their Derivatives (SITC 51616) totaled $414.4M in August 2026.
Importers of Acyclic, Cyclanic, Cyclenic & Aromatic Ethers and Their Derivatives paid $1.3M in duties in August 2026, an average duty rate of 12.87% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Acyclic, Cyclanic, Cyclenic & Aromatic Ethers and Their Derivatives imports of $12.0M in August 2026 ran 15% below the year-to-date monthly average of $14.1M.
Last updated: August 2026 dataSpanning a broad structural range from simple diethyl ether to complex aromatic ethers like diphenyl oxide, this heading covers acyclic, alicyclic, and aromatic ether compounds along with their halogenated, sulfonated, nitrated, or nitrosated derivatives. Aromatic ethers such as anisole and phenetole are important fragrance and pharmaceutical intermediates, while aliphatic ethers serve as industrial solvents and fuel additives. The structural diversity within this heading means that classification disputes often hinge on ring saturation and the presence of derivative substituents.
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205 import shipments a month
Aromatic ethers contain at least one aryl group directly bonded to the ether oxygen (e.g., anisole, diphenyl ether), while acyclic ethers have only aliphatic carbon chains on both sides of the oxygen. This distinction matters because some aromatic ether derivatives may also qualify as phenol ethers or other more-specific chemical classes, potentially shifting the correct tariff line.
Certain ethers — notably diethyl ether — are monitored as List I or List II chemicals by the DEA due to their potential use in illicit drug manufacturing. Importers of regulated ether solvents must comply with DEA registration and reporting requirements in addition to standard customs entry procedures. EPA TSCA inventory status should also be confirmed for less-common ether derivatives.
Basic heading 13 of 465 in section 5
Basic heading 51616 · $414.4M of $26.2B
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Exports · August 2026
destination
Japan and Mexico together take 75% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$12.0MYoY · free account
Exports
$414.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $159.8M of Acyclic, Cyclanic, Cyclenic & Aromatic Ethers and Their Derivatives and exported $3.1B.
Through August 2026. Source: U.S. Census Bureau.