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
12.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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