220718-09-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220718-09-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,7,1 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 220718-09:
(8*2)+(7*2)+(6*0)+(5*7)+(4*1)+(3*8)+(2*0)+(1*9)=102
102 % 10 = 2
So 220718-09-2 is a valid CAS Registry Number.