511-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 511-71-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 511-71:
(5*5)+(4*1)+(3*1)+(2*7)+(1*1)=47
47 % 10 = 7
So 511-71-7 is a valid CAS Registry Number.