539802-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 539802-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,9,8,0 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 539802-40:
(8*5)+(7*3)+(6*9)+(5*8)+(4*0)+(3*2)+(2*4)+(1*0)=169
169 % 10 = 9
So 539802-40-9 is a valid CAS Registry Number.