22809-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22809-78-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,8,0 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22809-78:
(7*2)+(6*2)+(5*8)+(4*0)+(3*9)+(2*7)+(1*8)=115
115 % 10 = 5
So 22809-78-5 is a valid CAS Registry Number.