11-Perfluoroctyl-10-chlorhendecansaeure, also known as C13F27COOH, is a perfluorinated carboxylic acid with a molecular formula of C13HF27O2. It is characterized by a long carbon chain with 11 perfluorinated octyl groups and a single chlorine atom attached to the 10th carbon. This chemical is a derivative of perfluorinated compounds, which are known for their unique properties such as high chemical and thermal stability, low surface energy, and resistance to degradation. These characteristics make them useful in various industrial applications, including the production of non-stick coatings, water-repellent fabrics, and firefighting foams. However, due to their persistence in the environment and potential health risks, there is growing concern over their use and disposal.
The CAS Registry Mumber 918-31-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,1 and 8 respectively; the second part has 2 digits, 3 and 1 respectively. Calculate Digit Verification of CAS Registry Number 918-31: (5*9)+(4*1)+(3*8)+(2*3)+(1*1)=80 80 % 10 = 0 So 918-31-0 is a valid CAS Registry Number.