1017222-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1017222-23-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,7,2,2 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1017222-23:
(9*1)+(8*0)+(7*1)+(6*7)+(5*2)+(4*2)+(3*2)+(2*2)+(1*3)=89
89 % 10 = 9
So 1017222-23-9 is a valid CAS Registry Number.