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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used as inorganic luminophore base
Luminophores not synthetic organic classify under 3206, but benzoxazol is organic.
If dispersed in polymer masterbatch form
Brightener embedded in plastic resins becomes a polymer product, not pure chemical.
If sold as additive mixture for industrial compounding
Prepared additives blending multiple chemicals fall outside pure coloring matter scope.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include CAS number (typically 1533-45-5 for OB-1) in import docs for customs verification
• Test for solvent content; solutions with >50% solvent may shift to 3208 per chapter notes
Related Products 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.
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.