117831-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117831-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,3 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 117831-99:
(8*1)+(7*1)+(6*7)+(5*8)+(4*3)+(3*1)+(2*9)+(1*9)=139
139 % 10 = 9
So 117831-99-9 is a valid CAS Registry Number.
117831-99-9Relevant academic research and scientific papers
Luxen, A.,Barrio, J.R.
, p. 1501 - 1504 (1988)
A regioselective aromatic ring fluorination of substituted veratroles was achieved via a mercuration-fluorodemercuration reaction.
