Tripropyl Trioxatriphosphinane Polymer Stabilizer
This technical grade of 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide is used in polymerization stabilization for engineering plastics production. It is classified under tariff item 2931.46.00 as the compound is specifically named in the tariff description, and the technical grade still meets the definition of a separate chemically defined compound.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product contains significant impurities or additives that make it unsuitable for the named compound
Products not meeting the purity standards for the named compound may fall under other organo-inorganic compounds.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the technical grade product is still a separate chemically defined compound and not a mixture with other stabilizers
• Provide documentation on the manufacturing process and purity to support classification
• If the product contains added stabilizers or anti-dusting agents, verify they do not change the classification
Related Products under Tariff item 2931.46.00
2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide
2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide is a specific non-halogenated organo-phosphorus compound with a trioxatriphosphinane ring structure and propyl groups attached to phosphorus atoms. It is classified under tariff item 2931.46.00 as it is explicitly named in the tariff description and meets the definition of an organo-inorganic compound under Chapter 29.
Cyclic Tripropyl Phosphonite Oxide Catalyst Precursor
This specialty chemical grade of 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide is used as a precursor for phosphinite-based catalysts in hydroformylation processes. It is classified under tariff item 2931.46.00 as the compound is specifically named in the tariff description, regardless of its intended use as a catalyst precursor.
Tripropyl Phosphorothioate Flame Retardant Intermediate
This high-purity grade of 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide is used as an intermediate in synthesizing phosphorus-based flame retardants for plastics. It is classified under tariff item 2931.46.00 because the compound is explicitly named in the tariff description, and its use as an intermediate does not affect classification.