Trimethyloctylammoniumperfluorooctylsulfonate, also known as C8F17SO3N(CH3)3, is a complex organic compound that belongs to the class of perfluorinated surfactants. It consists of a perfluorooctyl chain (C8F17), a sulfonate group (SO3-), and a trimethyloctylammonium cation (N(CH3)3). This chemical is widely used in various applications, such as in the production of firefighting foams, due to its unique properties like high thermal stability, low surface tension, and excellent wetting capabilities. However, it has raised environmental concerns due to its potential persistence in the environment and bioaccumulation in living organisms, leading to restrictions on its use in some regions.
The CAS Registry Mumber 25628-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,6,2 and 8 respectively; the second part has 2 digits, 1 and 9 respectively. Calculate Digit Verification of CAS Registry Number 25628-19: (7*2)+(6*5)+(5*6)+(4*2)+(3*8)+(2*1)+(1*9)=117 117 % 10 = 7 So 25628-19-7 is a valid CAS Registry Number.