298181-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 298181-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,8,1,8 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 298181-31:
(8*2)+(7*9)+(6*8)+(5*1)+(4*8)+(3*1)+(2*3)+(1*1)=174
174 % 10 = 4
So 298181-31-4 is a valid CAS Registry Number.