Tinopal OB Fluorescent Whitening Agent from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide technical data sheets confirming benzoxazol composition to support 3204 classification
• Declare intended industrial use in manufacturing to distinguish from consumer products