Toluene-2,6-Diisocyanate (Pure Isomer)
Pure toluene-2,6-diisocyanate is a specific isomer of TDI used in specialty polyurethane elastomers and coatings. Classified under HTS 2929.10.10.00 as it meets the definition of unmixed toluenediisocyanates with the characteristic isocyanate nitrogen function. Chapter 29 applies to separate chemically defined organic compounds like this aromatic diisocyanate.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when blended with 2,4-TDI isomer
Standard commercial TDI is 80/20 mixture of 2,4- and 2,6-isomers, moving to the 'other isocyanates' subheading as no longer 'unmixed'.
If formulated as polyurethane reaction mixture
Pre-reacted TDI with polyols or catalysts becomes a Chapter 38 refractory compound, excluded from pure Chapter 29 classification.
If containing quaternary heteroatoms
Chapter notes exclude organo-inorganic compounds with metals/nonmetals beyond H/O/N from heading 2929; classifies under heterocyclic compounds.
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Import Tips & Compliance
• Require manufacturer's isomer specification sheet for customs verification; comply with REACH/TSCA chemical registration; use UN-approved drums to prevent moisture contamination
Related Products under HTS 2929.10.10.00
Toluene-2,4-Diisocyanate (TDI 80/20)
Toluene-2,4-diisocyanate (TDI) in an 80/20 isomer mixture is a chemically defined aromatic isocyanate used primarily in polyurethane production. It falls under HTS 2929.10.10.00 as an unmixed toluenediisocyanate, a compound with 'other nitrogen function' featuring the -NCO group directly linked to the toluene ring. This subheading specifies pure TDI without blending with other isocyanates.
TDI-100 (2,4-TDI Pure Grade)
TDI-100 refers to 100% 2,4-toluenediisocyanate without 2,6-isomer contamination, used in high-performance coatings and adhesives. This unmixed form qualifies for HTS 2929.10.10.00 under isocyanates, as a chemically defined compound with the -NCO nitrogen function per Chapter 29 scope.
Desmodur T80 (BASF TDI 80/20)
Desmodur T80 is BASF's commercial grade 80% 2,4-TDI / 20% 2,6-TDI mixture, a staple raw material for flexible slabstock foam. It imports under HTS 2929.10.10.00 as unmixed toluenediisocyanates, meeting Chapter 29's criteria for chemically defined nitrogen-function compounds.
Suprasec 5005 (Huntsman TDI 80/20)
Huntsman Suprasec 5005 is stabilized 80/20 TDI with <25 ppm moisture content for flexible foam production. As unmixed toluenediisocyanate, it falls squarely under HTS 2929.10.10.00 per Chapter 29 note (f) allowing stabilizers for transport without changing classification.
TDI Lupranat T80 (BASF Specialty Grade)
Lupranat T80 is BASF's low-chloride TDI 80/20 for high-quality mattress foam, containing <5 ppm hydrolyzable chloride. This chemically pure, unmixed toluenediisocyanate imports under HTS 2929.10.10.00 as specified in the isocyanates subheading.
Cosmonate T-80 (Mitsui Chemicals TDI)
Mitsui's Cosmonate T-80 is Japanese-produced 80/20 TDI with high assay purity (>99.5%) for automotive seating foam. As a separate chemically defined toluenediisocyanate, it qualifies for HTS 2929.10.10.00 without mixture contaminants.