161431-82-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161431-82-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,4,3 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 161431-82:
(8*1)+(7*6)+(6*1)+(5*4)+(4*3)+(3*1)+(2*8)+(1*2)=109
109 % 10 = 9
So 161431-82-9 is a valid CAS Registry Number.
161431-82-9Relevant articles and documents
ortho-Substituted Unsymmetrical Biaryls from Aryl tert-Butyl Sulfones
Clayden, Jonathan,Julia, Marc
, p. 1682 - 1683 (1993)
Nickel-catalysed coupling of arylmagnesium halides with aryl tert-butyl sulfones, and in particular with those bearing ortho-substituents introduced by ortholithiation, gives ortho-substituted unsymmetrical biaryls.