51718-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51718-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,7,1 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51718-31:
(7*5)+(6*1)+(5*7)+(4*1)+(3*8)+(2*3)+(1*1)=111
111 % 10 = 1
So 51718-31-1 is a valid CAS Registry Number.