98888-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98888-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,8,8 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98888-81:
(7*9)+(6*8)+(5*8)+(4*8)+(3*8)+(2*8)+(1*1)=224
224 % 10 = 4
So 98888-81-4 is a valid CAS Registry Number.