909720-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 909720-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,9,7,2 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 909720-22:
(8*9)+(7*0)+(6*9)+(5*7)+(4*2)+(3*0)+(2*2)+(1*2)=175
175 % 10 = 5
So 909720-22-5 is a valid CAS Registry Number.