Tinopal OB Fluorescent Whitening Agent from China
Tinopal OB is a benzoxazole-based optical brightener for whitening synthetic fibers like polyester and polyamide in detergents and textiles. Classified under HTS 3204.20.40.00 for its benzoxazol structure as a fluorescent brightening agent per chapter note 3. It improves fabric appearance by emitting blue light upon UV excitation.
Duty Rate — China → 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
Import Tips
• Provide technical data sheets confirming benzoxazol composition to support 3204 classification
• Declare intended industrial use in manufacturing to distinguish from consumer products