Flame Retardant TBPA Anhydride
Industrial-grade tetrabromophthalic anhydride for manufacturing brominated epoxy resins used in printed circuit boards. Specifically classified under HTS 2917.39.17.00 as the named tetrabromo derivative of phthalic anhydride. Provides high bromine content (68%) for effective flame suppression.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing additional heterocyclic nitrogen ring structures
Nucleic acid derivatives or other nitrogen heterocycles classify under heading 2934.
If for activated carbon composite flame retardant formulations
Composite preparations with activated carbon fall under Chapter 38.
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Import Tips & Compliance
• Submit EPA TSCA certification form confirming existing chemical inventory status (PMN not required)
• Label shipments with GHS pictograms for skin irritation and specific target organ toxicity
• Monitor CBP rulings on purity thresholds distinguishing pure compounds from mixtures
Related Products under HTS 2917.39.17.00
Tetrabromophthalic Anhydride
Tetrabromophthalic anhydride is a halogenated aromatic polycarboxylic acid anhydride used primarily as a reactive flame retardant intermediate in polymer production. It falls under HTS 2917.39.17.00 as a specifically named derivative of aromatic polycarboxylic acids with bromine substitution. The compound's structure features a phthalic anhydride core with four bromine atoms, meeting Chapter 29 note requirements for halogenated derivatives.
TBPA Flame Retardant Intermediate
TBPA (tetrabromophthalic anhydride) serves as a key reactive intermediate for synthesizing brominated polyester resins and polyurethane flame retardants. Classified under HTS 2917.39.17.00 due to its specific chemical identity as a tetrabrominated phthalic anhydride. Used in electronics and construction materials for high-temperature flame resistance.
4,5,6,7-Tetrabromophthalic Anhydride
Pure 4,5,6,7-tetrabromophthalic anhydride (CAS 6322-99-2) used in reactive flame retardant synthesis for unsaturated polyester resins. Meets HTS 2917.39.17.00 as the specifically enumerated tetrabrominated aromatic anhydride derivative. Provides thermal stability and bromine source for covalent flame retardant bonding.