12018-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12018-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,1 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12018-57:
(7*1)+(6*2)+(5*0)+(4*1)+(3*8)+(2*5)+(1*7)=64
64 % 10 = 4
So 12018-57-4 is a valid CAS Registry Number.