220038-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220038-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,0,3 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220038-45:
(8*2)+(7*2)+(6*0)+(5*0)+(4*3)+(3*8)+(2*4)+(1*5)=79
79 % 10 = 9
So 220038-45-9 is a valid CAS Registry Number.