22016-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22016-23-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,0,1 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 22016-23:
(7*2)+(6*2)+(5*0)+(4*1)+(3*6)+(2*2)+(1*3)=55
55 % 10 = 5
So 22016-23-5 is a valid CAS Registry Number.