220018-45-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220018-45-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,0,1 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220018-45:
(8*2)+(7*2)+(6*0)+(5*0)+(4*1)+(3*8)+(2*4)+(1*5)=71
71 % 10 = 1
So 220018-45-1 is a valid CAS Registry Number.