123389-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123389-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,3,8 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123389-71:
(8*1)+(7*2)+(6*3)+(5*3)+(4*8)+(3*9)+(2*7)+(1*1)=129
129 % 10 = 9
So 123389-71-9 is a valid CAS Registry Number.
123389-71-9Relevant academic research and scientific papers
A new regioselective synthesis of pterocarpans
Engler, Thomas A.,Combrink, Keith D.,Reddy, Jayachandra P.
, p. 454 - 455 (2007/10/02)
Pterocarpans are formed directly and efficiently via titanium(IV) catalysed reactions of 2H-chromenes and 2-alkoxy-1,4-benzoquinones.
