Isophorone Diisocyanate (IPDI)

IPDI is a cycloaliphatic diisocyanate for durable coatings, fitting chapter's organic compound definition. HTS 2929.10.55.00 applies as a product in U.S. note 3 to section VI.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+35.0%41.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2929.90Lower: 16.5% vs 41.5%

If other nitrogen function emphasized

Numerical order rule places isocyanates earlier than 2929.90.

3814.00.50Lower: 41% vs 41.5%

If as organic composite solvent

If put up with solvents for specific use beyond transport.

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Import Tips & Compliance

• Purity >99% typical; volatility requires ventilated storage

• Avoid classifying as ketone derivative

Related Products under HTS 2929.10.55.00

Methylene Diphenyl Diisocyanate (MDI)

MDI is a chemically defined aromatic diisocyanate used primarily in polyurethane production for foams and coatings. It falls under HTS 2929.10.55.00 as an isocyanate specifically listed in additional U.S. note 3 to section VI, distinguishing it from other isocyanates.

Polymeric Methylene Diphenyl Diisocyanate (PMDI)

PMDI is a mixture of MDI oligomers, a chemically defined isocyanate for rigid polyurethane foams in insulation. Classified under HTS 2929.10.55.00 per additional U.S. note 3 to section VI for specific isocyanates.

Carbodiimide Stabilized MDI

This MDI variant includes carbodiimide stabilizer for extended shelf life, remaining a chemically defined isocyanate. It qualifies for HTS 2929.10.55.00 under U.S. note 3 as a listed product with necessary preservative.

Prepolymeric MDI Isocyanate

Prepolymeric MDI is a low-viscosity isocyanate prepolymer for flexible foam production, chemically defined under chapter scope. HTS 2929.10.55.00 applies due to its inclusion in additional U.S. note 3.

Modified Diphenylmethane Diisocyanate (Modified MDI)

Modified MDI features altered functionality for coatings and adhesives, still a core isocyanate per chapter notes. It is classified in HTS 2929.10.55.00 as a product described in U.S. note 3 to section VI.

Crude MDI

Crude MDI contains oligomeric impurities but remains a chemically defined diisocyanate for industrial use. Falls under HTS 2929.10.55.00 per additional U.S. note 3, allowing impurities as per chapter note 1(a).