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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If nitrogen hetero-atom function predominates
Chapter rule classifies in last occurring heading; nitrogen heterocycles follow oxygen in numerical order.
If classified as alkylamine derivative
Secondary amine structure may classify under amine headings if heterocyclic nature secondary.
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Import Tips & Compliance
• Specify if imported with anti-dusting agents per chapter note (g)
• Rubber industry end-users may require additional TSCA declarations
• Verify classification doesn't fall under nitrogen heterocycles (2933) based on principal function
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.
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.
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.
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.