118718-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118718-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,7,1 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 118718-45:
(8*1)+(7*1)+(6*8)+(5*7)+(4*1)+(3*8)+(2*4)+(1*5)=139
139 % 10 = 9
So 118718-45-9 is a valid CAS Registry Number.