117-71-5 Usage
General Description
2'-chloro[1,1'-biphenyl]-2,5-diol, also known as PCB-2,5-diols, is a chemical compound that belongs to the class of polychlorinated biphenyls (PCBs). PCB-2,5-diols are toxic and persistent pollutants that can accumulate in the environment and in living organisms. They have been linked to various adverse health effects, including developmental and reproductive issues, as well as carcinogenicity. PCB-2,5-diols are often found as byproducts of industrial processes and have been banned in many countries due to their harmful effects on ecosystems and human health. Proper disposal and ongoing monitoring of PCB-2,5-diols are necessary to prevent further contamination and minimize the risks associated with their presence in the environment.
Check Digit Verification of cas no
The CAS Registry Mumber 117-71-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,1 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117-71:
(5*1)+(4*1)+(3*7)+(2*7)+(1*1)=45
45 % 10 = 5
So 117-71-5 is a valid CAS Registry Number.
117-71-5Relevant articles and documents
Synthesis of amino- and hydroxybiphenyls by radical chain reaction of arenediazonium salts
Wetzel, Alexander,Ehrhardt, Varinia,Heinrich, Markus R.
supporting information; experimental part, p. 9130 - 9133 (2009/02/08)
Radically shortened: In the propagation step of the title reaction, the cyclohexadienyl radical intermediate is oxidized by an arenediazonium ion to give the biaryl product (see scheme) while simultaneously a new aryl radical and nitrogen are formed. (Chemical Equation Presented).
