220278-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220278-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,2,7 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220278-73:
(8*2)+(7*2)+(6*0)+(5*2)+(4*7)+(3*8)+(2*7)+(1*3)=109
109 % 10 = 9
So 220278-73-9 is a valid CAS Registry Number.