Fluorescent Brightener OB-1
OB-1 (CAS 1533-45-5) is a synthetic organic stilbene-based fluorescent brightening agent used in polyester and plastic whitening. Falls under HTS 3204.90.00.00 as synthetic products used as fluorescent brightening agents per heading scope. Absorbs UV light and emits blue fluorescence for brightness.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other fluorescent brightening agents enumerated
Certain FBAs like Tinopal have specific provisions within 3204.20.
If chemically defined as heterocycles without brightening function
Pure chemical compounds lacking fluorescent brightening use classify by chemical structure.
If used as finishing agents in preparations
FBAs in finishing preparations for textiles classify in 3809.91.
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Import Tips & Compliance
• Supply UV absorption spectra (370nm peak) and emission data to confirm FBA classification
• Include polymerization compatibility certificates for textile/plastics applications
• Avoid claiming as UV absorber (Chapter 29) without fluorescence properties
Related Products under HTS 3204.90.00.00
Disperse Blue 56 Dye
Disperse Blue 56 is a synthetic organic azo dye used primarily for coloring polyester fabrics in textile dyeing processes. It falls under HTS 3204.90.00.00 as 'other' synthetic organic coloring matter, not specifically enumerated elsewhere in heading 3204. This water-insoluble dye disperses evenly in hot baths for vibrant blue shades on synthetic fibers.
Reactive Red 195 Dye
Reactive Red 195 is a synthetic reactive dye containing chlorotriazine reactive groups for covalent bonding with cotton and cellulosic fibers. Classified under HTS 3204.90.00.00 as other synthetic organic coloring matter used in textile printing and dyeing. Provides excellent wash fastness and bright red hues.
Acid Yellow 36 Dye
Acid Yellow 36 (CI 13065) is a synthetic monoazo acid dye soluble in water, used for dyeing wool, silk, and nylon with bright yellow shades. Falls under HTS 3204.90.00.00 as other synthetic organic coloring matter per chapter notes. Commonly applied in leather and paper coloring as well.
Direct Blue 86 Dye
Direct Blue 86 (CI 74180) is a copper phthalocyanine direct dye for cotton, paper, and leather with turquoise blue color. HTS 3204.90.00.00 covers this as other synthetic organic coloring matter. Substantive to cellulosic fibers without mordants.
Pigment Red 122
Pigment Red 122 (Quinacridone Magenta, CAS 980-26-7) is a high-performance organic pigment for automotive paints and plastics. Though typically under 3206, certain preparations based on this synthetic colorant fall in 3204.90.00.00 per chapter note 3. Provides excellent lightfastness.
Basic Yellow 28 Dye
Basic Yellow 28 (CI 41000) is a synthetic cationic dye for acrylic fibers, paper, and inks with fluorescent yellow shade. Classifies under HTS 3204.90.00.00 as other synthetic organic coloring matter. Excellent for tinting and marking applications.