220359-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220359-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,5 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220359-73:
(8*2)+(7*2)+(6*0)+(5*3)+(4*5)+(3*9)+(2*7)+(1*3)=109
109 % 10 = 9
So 220359-73-9 is a valid CAS Registry Number.