Phosphoric acid methyl ester bis-(2,4,6-tribromo-phenyl) ester, also known as tribromophenyl phosphate or TBPP, is a flame retardant chemical compound with the molecular formula C6H3Br3O4P. It is a colorless, odorless, and non-toxic liquid that is widely used in various applications, such as in the production of plastics, rubber, and textiles, to enhance their fire resistance. TBPP works by releasing bromine atoms when exposed to heat, which then interrupt the combustion process. Due to its effectiveness and low toxicity, it has become a popular choice for flame retardant applications. However, concerns have been raised about its potential environmental impact, as it can leach into water systems and accumulate in the environment.
The CAS Registry Mumber 2421-06-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,4,2 and 1 respectively; the second part has 2 digits, 0 and 6 respectively. Calculate Digit Verification of CAS Registry Number 2421-06: (6*2)+(5*4)+(4*2)+(3*1)+(2*0)+(1*6)=49 49 % 10 = 9 So 2421-06-9 is a valid CAS Registry Number.