89969-05-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89969-05-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,6 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89969-05:
(7*8)+(6*9)+(5*9)+(4*6)+(3*9)+(2*0)+(1*5)=211
211 % 10 = 1
So 89969-05-1 is a valid CAS Registry Number.