22161-00-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22161-00-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,6 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 22161-00:
(7*2)+(6*2)+(5*1)+(4*6)+(3*1)+(2*0)+(1*0)=58
58 % 10 = 8
So 22161-00-8 is a valid CAS Registry Number.