5317-29-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5317-29-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,3,1 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5317-29:
(6*5)+(5*3)+(4*1)+(3*7)+(2*2)+(1*9)=83
83 % 10 = 3
So 5317-29-3 is a valid CAS Registry Number.
5317-29-3Relevant articles and documents
Process for preparing cephalosporin esters in the presence of liquid sulfur dioxide
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, (2008/06/13)
A process for preparing a cephalosporin ester which comprises subjecting an organic halide or an alcohol to reaction with a cephalosporin acid, a cephalosporin acid halide or a salt thereof in the presence of liquid sulfur dioxide.
