22170-09-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22170-09-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,7 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22170-09:
(7*2)+(6*2)+(5*1)+(4*7)+(3*0)+(2*0)+(1*9)=68
68 % 10 = 8
So 22170-09-8 is a valid CAS Registry Number.