131953-06-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131953-06-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,5 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131953-06:
(8*1)+(7*3)+(6*1)+(5*9)+(4*5)+(3*3)+(2*0)+(1*6)=115
115 % 10 = 5
So 131953-06-5 is a valid CAS Registry Number.
131953-06-5Relevant articles and documents
Cephalosporin derivatives
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, (2008/06/13)
β-Lactam compounds of the formula (Ia) including pharmaceutically acceptable salts and in vivo hydrolysable esters, processes for their preparation and their use as antibiotics: STR1 wherein R1 is hydrogen, methoxy or formamido; R2 i