U.S. imports of Carboxylic Acids with Aldehyde or Ketone Function & Derivatives (SITC 51395) totaled $6.0M in August 2026, imported from 19 countries.
Importers of Carboxylic Acids with Aldehyde or Ketone Function & Derivatives paid $1.1M in duties in August 2026, an average duty rate of 17.00% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataKeto-acids and aldehyde-acids — organic acids whose only additional oxygen function is a carbonyl group — occupy this heading, covering compounds such as pyruvic acid, levulinic acid, and acetoacetic acid derivatives. Levulinic acid has attracted growing interest as a bio-based platform chemical derived from lignocellulosic biomass, positioning it as a renewable feedstock for solvents, fuel additives, and polymer precursors. Trade professionals should be aware that several acetoacetate esters used as pharmaceutical or flavor intermediates may trigger FDA documentation requirements depending on their intended application.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
138 import shipments a month
Levulinic acid is a keto-acid classifiable under this heading and is gaining commercial traction as a bio-based platform chemical for producing solvents (e.g., gamma-valerolactone), plasticizers, and fuel additives. Its renewable origin does not change its SITC classification, but buyers should confirm the production route and purity specification, as bio-derived and petrochemical-derived grades may differ in impurity profiles relevant to downstream processing.
Yes, acetoacetate esters — where the ketone carbonyl is the only additional oxygen function beyond the ester linkage — are generally classifiable here. These compounds are widely used as pharmaceutical intermediates and flavor chemicals. Importers should verify the specific compound's CAS number against the heading's structural criteria and consult a customs broker if the compound contains additional functional groups that might place it under a different heading.
Basic heading 301 of 465 in section 5
Basic heading 51395 · $6.0M of $27.5B
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ImportsExports
Imports
$6.0MYoY · free account
Exports
$4.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $73.4M of Carboxylic Acids with Aldehyde or Ketone Function & Derivatives and exported $47.1M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Switzerland and China together supply 54% of it. China pays 39.1% duty; Spain 7.2%.
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.