618420-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 618420-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,8,4,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 618420-45:
(8*6)+(7*1)+(6*8)+(5*4)+(4*2)+(3*0)+(2*4)+(1*5)=144
144 % 10 = 4
So 618420-45-4 is a valid CAS Registry Number.