220069-89-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220069-89-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,0,6 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 220069-89:
(8*2)+(7*2)+(6*0)+(5*0)+(4*6)+(3*9)+(2*8)+(1*9)=106
106 % 10 = 6
So 220069-89-6 is a valid CAS Registry Number.