512809-05-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 512809-05-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,2,8,0 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 512809-05:
(8*5)+(7*1)+(6*2)+(5*8)+(4*0)+(3*9)+(2*0)+(1*5)=131
131 % 10 = 1
So 512809-05-1 is a valid CAS Registry Number.