523-61-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 523-61-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 523-61:
(5*5)+(4*2)+(3*3)+(2*6)+(1*1)=55
55 % 10 = 5
So 523-61-5 is a valid CAS Registry Number.
523-61-5Relevant articles and documents
A NEW SYNTHESIS OF ATANINE, KHAPLOFOLINE AND THEIR ANALOGUES
Ramesh, M.,Arisvaran, V.,Rajendran, S. P.,Shanmugam, P.
, p. 967 - 970 (1982)
Afacile synthesis of Atanine, Khaplofoline and their ananogues is described.The method involves condensation of an appropriately substituted 2-quinolone-3-acetic acid with isobutyraldehyde, as the starting point.
