1247520-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1247520-72-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,7,5,2 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1247520-72:
(9*1)+(8*2)+(7*4)+(6*7)+(5*5)+(4*2)+(3*0)+(2*7)+(1*2)=144
144 % 10 = 4
So 1247520-72-4 is a valid CAS Registry Number.