TBBA Flame Retardant Powder (CAS 79-94-7)

TBBA identified by CAS number 79-94-7 is a high-melting-point (≥240°C) brominated bisphenol used in ABS plastics and polycarbonate composites for flame retardancy. It qualifies for HTS 2908.19.25.00 as a chemically defined organic compound that is a purely halogenated derivative of phenol-alcohols per Chapter 29 scope. Key additive in consumer electronics housings.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+35.0%40.5%
🇲🇽Mexico5.5%+10.0%15.5%
🇨🇦Canada5.5%+10.0%15.5%
🇩🇪Germany5.5%+10.0%15.5%
🇯🇵Japan5.5%+10.0%15.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2903.69.90.00Lower: 3.7% vs 40.5%

If for halogenated phenol-alcohols without bisphenol structure

Simpler halogenated phenols fall under the 2903.69 basket, while TBBA's specific structure dictates 2908 classification.

3808.94.50Lower: 30% vs 40.5%

If imported as goods specified in note 1(c) like certain pesticide intermediates

Specific Chapter 29 exclusions apply, but TBBA as flame retardant stays in its primary organic compound heading.

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Import Tips & Compliance

Label with exact CAS 79-94-7 and chemical name per 49 CFR hazardous materials regulations for DOT compliance

Screen for Proposition 65 warnings if California-bound, as brominated compounds may trigger chemical listing

Document stabilizer content <1% to stay within Chapter 29 note (f) for added preservatives