TBBA Flame Retardant Powder (CAS 79-94-7) from Canada
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.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• 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