81744-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81744-28-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,4 and 4 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81744-28:
(7*8)+(6*1)+(5*7)+(4*4)+(3*4)+(2*2)+(1*8)=137
137 % 10 = 7
So 81744-28-7 is a valid CAS Registry Number.
81744-28-7Relevant articles and documents
Ortholithiation as a tool for the synthesis of Ebselen analogues
Lambert,Hilbert,Christiaens
, p. 85 - 98 (2007/10/02)
Ortholithiation reactions are shown to be effective tools for the synthesis of Ebselen (N-phenyl-benzisoselenazolin-3-one) derivatives.