2929.10.27.00/N-Butyl Isocyanate 98% Stabilized/Canada

N-Butyl Isocyanate 98% Stabilized from Canada

N-Butyl isocyanate stabilized with 0.05% dibutyltin dilaurate (CAS 111-36-4) prevents polymerization during storage and transport. Remains classified under HTS 2929.10.2700 per Chapter 29 note (f) as the isocyanate retains its chemical identity with necessary stabilizer addition.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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Import Tips

• 1

• Declare stabilizer composition and percentage on commercial invoice; 2

• Stabilizer must be <1% to maintain principal compound status; 3

• Include accelerated stability test data