253426-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 253426-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,4,2 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 253426-20:
(8*2)+(7*5)+(6*3)+(5*4)+(4*2)+(3*6)+(2*2)+(1*0)=119
119 % 10 = 9
So 253426-20-9 is a valid CAS Registry Number.
253426-20-9Relevant academic research and scientific papers
Mayer,Brunel,Imbert
, p. 3021 - 3022 (1999)
The key step of the synthesis of efaroxan was the dihydrobenzofuran ring formation involving an intramolecular cyclization of the tertiary alcohol intermediate with the fluoroaromatic moiety in basic medium. This carbinol was prepared according to two rou
