54469-72-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54469-72-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,6 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 54469-72:
(7*5)+(6*4)+(5*4)+(4*6)+(3*9)+(2*7)+(1*2)=146
146 % 10 = 6
So 54469-72-6 is a valid CAS Registry Number.
54469-72-6Relevant articles and documents
SYNTHESIS OF SUBSTITUTED 2- AND 4-CARBOXYPYRYLIUM SALTS
Kholodova, N. V.,Andreichikov, Yu. P.,Dorofeenko, G. N.
, p. 109 - 112 (2007/10/02)
Modified methods for the synthesis of substituted 2- and 4-carboxypyrylium perchlorates and the necessary diphenacylacetic acids are proposed.