77953-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77953-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,5 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77953-22:
(7*7)+(6*7)+(5*9)+(4*5)+(3*3)+(2*2)+(1*2)=171
171 % 10 = 1
So 77953-22-1 is a valid CAS Registry Number.
77953-22-1Relevant academic research and scientific papers
Kholodova, N. V.,Andreichikov, Yu. P.,Dorofeenko, G. N.
, p. 109 - 112 (1981)
Modified methods for the synthesis of substituted 2- and 4-carboxypyrylium perchlorates and the necessary diphenacylacetic acids are proposed.
