Benzoxazol
Synthetic organic coloring matter, whether or not chemically defined; preparations as specified in note 3 to this chapter based on synthetic organic coloring matter; synthetic organic products of a kind used as fluorescent brightening agents or as luminophores, whether or not chemically defined: > Synthetic organic products of a kind used as fluorescent brightening agents: > Benzoxazol
Duty Rate (from China)
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
Products classified under HTS 3204.20.40.00
Benzoxazole Fluorescent Brightening Agent OB-1
Benzoxazole OB-1 is a synthetic organic fluorescent brightening agent used to enhance the whiteness and brightness of polyester fibers and plastics. It falls under HTS 3204.20.40.00 as a benzoxazol-type product designed for optical brightening in textile and polymer applications. This chemical absorbs UV light and emits blue fluorescence, counteracting yellowing.
Tinopal OB Fluorescent Whitening Agent
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.
OB Fluorescent Brightener for Plastics
OB-type benzoxazol fluorescent brightener is added to polystyrene, PVC, and ABS plastics to achieve high whiteness and brightness. HTS 3204.20.40.00 covers this synthetic organic product used as a luminophore in polymer compounding. It prevents yellowness in transparent and opaque plastic products.
Benzoxazole CBS-X Optical Brightener
CBS-X is a benzoxazole derivative fluorescent whitening agent primarily for cotton and cellulosic textiles in paper and detergent industries. It qualifies under HTS 3204.20.40.00 as a synthetic organic fluorescent brightening agent. The product converts UV to visible blue light for enhanced brightness.
Fluorescent Brightener 184 Benzoxazol
Fluorescent Brightener 184 (FB184) is a benzoxazol compound for whitening polyolefins, engineering plastics, and synthetic leather. Under HTS 3204.20.40.00 for synthetic organic luminophores/brightening agents. It provides superior light fastness and heat stability in extrusion processes.