Homopiperidine Stabilized with BHT
Homopiperidine (hexamethyleneimine) stabilized with butylated hydroxytoluene (BHT) to prevent oxidation during storage and transport. Falls under HTS 2933.99.89.00 per Chapter 29 note (f) allowing stabilizers necessary for preservation without changing specific use. Used in fine chemical manufacturing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stabilizer addition renders it suitable for specific rubber/anti-oxidant use
Chapter note (g) excludes preparations particularly suited for specific uses beyond identification/safety.
If caffeine or ergotamine derivatives
More specific alkaloid subheadings precede general 'other' nitrogen heterocycles in numerical order.
If reclassified as cyclic alcohol derivative
Material composition emphasizing different functional group changes primary heading per classification rules.
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Import Tips & Compliance
• Document stabilizer ≤0.1% by weight with HPLC certificate to qualify under Chapter note (f); excess shifts to mixtures
• Use Type 1A1 steel drums with PTFE lining; inspect for corrosion as common failure point with basic heterocycles
• Declare exact stabilizer composition on commercial invoice; FDA may require for pharma intermediate pathway
Related Products under HTS 2933.99.89.00
Hexamethyleneimine
Hexamethyleneimine, also known as homopiperidine, is a seven-membered heterocyclic compound with a single nitrogen hetero-atom in the ring structure. It falls under HTS 2933.99.89.00 as a specific compound within the category of heterocyclic compounds containing only nitrogen hetero-atoms, other than those specified elsewhere. This chemical is used as an intermediate in pharmaceutical synthesis and organic reactions.
Hexamethyleneimine 99% Technical Grade
Technical grade hexamethyleneimine at 99% purity, a colorless liquid heterocyclic amine used in agrochemical and polymer synthesis. Classified under HTS 2933.99.89.00 as it matches the specific chemical definition for separate chemically defined organic heterocyclic nitrogen compounds. Impurities are minimal and do not alter its principal classification.
1-Azacycloheptane (Hexamethyleneimine)
1-Azacycloheptane, the systematic name for hexamethyleneimine, is a saturated seven-membered ring with one nitrogen atom. It qualifies for HTS 2933.99.89.00 as a heterocyclic compound with nitrogen hetero-atoms only, explicitly listed in this subheading. Commonly used in coordination chemistry and as a ligand precursor.
Hexamethyleneimine Hydrochloride Salt
The hydrochloride salt form of hexamethyleneimine, a solid crystalline material for easier handling in synthesis. Classified under HTS 2933.99.89.00 following Chapter 29 note on inorganic salts of organic compounds staying with the parent organic heading. Used in medicinal chemistry research.