U.S. imports of Acetals, Hemiacetals & Their Halogenated, Sulfonated, Nitrated or Nitrosated Derivatives (SITC 51612) totaled $797K in August 2026, imported from 11 countries.
Importers of Acetals, Hemiacetals & Their Halogenated, Sulfonated, Nitrated or Nitrosated Derivatives paid $112K in duties in August 2026, an average duty rate of 16.30% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataAcetals and hemiacetals serve as key intermediates and solvents in fragrance, flavor, and resin manufacturing, with their derivatized forms — halogenated, sulfonated, nitrated, or nitrosated — finding use in specialty chemical synthesis. Classification within this SITC heading turns on whether the compound carries additional oxygen functionality and the nature of any derivative substitution, distinctions that can shift a product across multiple tariff lines. Industrial buyers sourcing these compounds for polymer or coating applications should verify the precise chemical identity to ensure correct classification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
46 import shipments a month
An acetal has two alkoxy groups attached to the same carbon (fully protected carbonyl), while a hemiacetal retains one hydroxyl group. This structural difference can affect classification at the tariff-line level, particularly when additional oxygen functions or derivative substitutions are present. Importers should provide the full IUPAC name and CAS number to their customs broker to confirm the correct heading.
Fragrance and flavor manufacturers use cyclic acetals as aroma chemicals; resin and adhesive producers rely on polyvinyl acetal intermediates; and pharmaceutical synthesizers use derivatized acetals as protecting groups. The specific end-use can also influence whether any EPA Toxic Substances Control Act (TSCA) notification is required prior to import.
Basic heading 401 of 465 in section 5
Basic heading 51612 · $797K of $27.5B
Trade Directory
List your company and tag the 6-digit products you trade, so the companies trading them can find you. Be the first supplier listed.
Imports · August 2026
origin
India and Spain together supply 58% of it. China pays 40.5% duty; Germany 10.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$797KYoY · free account
Exports
$495KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $9.3M of Acetals, Hemiacetals & Their Halogenated, Sulfonated, Nitrated or Nitrosated Derivatives and exported $4.7M.
Through August 2026. Source: U.S. Census Bureau.