515120-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 515120-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,5,1,2 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 515120-77:
(8*5)+(7*1)+(6*5)+(5*1)+(4*2)+(3*0)+(2*7)+(1*7)=111
111 % 10 = 1
So 515120-77-1 is a valid CAS Registry Number.