689221-06-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 689221-06-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,2,2 and 1 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 689221-06:
(8*6)+(7*8)+(6*9)+(5*2)+(4*2)+(3*1)+(2*0)+(1*6)=185
185 % 10 = 5
So 689221-06-5 is a valid CAS Registry Number.