220440-52-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220440-52-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,4,4 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 220440-52:
(8*2)+(7*2)+(6*0)+(5*4)+(4*4)+(3*0)+(2*5)+(1*2)=78
78 % 10 = 8
So 220440-52-8 is a valid CAS Registry Number.