β-(Pentachlorphenoxymethoxy)-ethyl-bromid, also known as 2-bromoethyl 2,3,4,5,6-pentachlorphenyl ether, is a chemical compound with the molecular formula C13H9BrCl5O2. It is a brominated derivative of pentachlorophenol, featuring a bromine atom attached to an ethyl group, which is further connected to a pentachlorophenoxy group. β-(Pentachlorphenoxymethoxy)-ethyl-bromid has been used in various applications, including as a chemical intermediate and in the synthesis of other compounds. However, due to its potential environmental and health risks, its use has been restricted or banned in many countries. It is important to handle this chemical with care, as it can be toxic and harmful to both humans and the environment.
The CAS Registry Mumber 21112-72-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,1 and 2 respectively; the second part has 2 digits, 7 and 2 respectively. Calculate Digit Verification of CAS Registry Number 21112-72: (7*2)+(6*1)+(5*1)+(4*1)+(3*2)+(2*7)+(1*2)=51 51 % 10 = 1 So 21112-72-1 is a valid CAS Registry Number.