1,4-Dioxane
1,4-Dioxane is a six-membered heterocyclic ring with two oxygen atoms in 1,4-positions, aromatic heterocyclic compound under HTS 2932.99.70.00. Widely used as an industrial solvent despite regulatory concerns.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered acyclic ether derivative
Ether classification in heading 2909 applies if heterocyclic nature is secondary to ether function.
If imported as mixture with >70% solvent content
Chemical mixtures meeting mixture criteria fall under chapter 38 prepared binders.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include purity analysis certificate as 1,4-dioxane often requires REACH/TSCA compliance documentation
• Verify solvent does not render product suitable for specific use per chapter note (e)
• Label with hazard warnings; may require DOT hazardous material declaration
Related Products under HTS 2932.99.70.00
Dioxolane
Dioxolane is a five-membered heterocyclic ring compound containing two oxygen hetero-atoms, classified under HTS 2932.99.70.00 as an aromatic heterocyclic compound with oxygen hetero-atoms only. It is commonly used as a solvent and intermediate in organic synthesis.
Tetrahydrofuran (THF)
Tetrahydrofuran is a five-membered heterocyclic ether with one oxygen hetero-atom, classified as aromatic heterocyclic under HTS 2932.99.70.00. Essential solvent in pharmaceutical and polymer manufacturing.
Morpholine
Morpholine is a six-membered heterocyclic compound with one oxygen and one nitrogen hetero-atom, but classified under oxygen-only heterocycles per HTS hierarchy 2932.99.70.00 when oxygen function predominates. Used in rubber vulcanization and corrosion inhibition.
Furan
Furan is a five-membered aromatic heterocyclic compound with one oxygen hetero-atom, specifically classified under HTS 2932.99.70.00. Used as solvent and in resin production.
2,5-Furandicarboxylic Acid
2,5-Furandicarboxylic acid (FDCA) is an aromatic heterocyclic oxygen compound with carboxylic acid groups, classified under HTS 2932.99.70.00. Bio-based alternative to terephthalic acid for PET production.
Gamma-Butyrolactone (GBL)
Gamma-butyrolactone is a five-membered lactone ring heterocyclic with oxygen hetero-atom, aromatic under HTS 2932.99.70.00. Used as solvent and precursor to GHB.