40490-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40490-13-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,9 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 40490-13:
(7*4)+(6*0)+(5*4)+(4*9)+(3*0)+(2*1)+(1*3)=89
89 % 10 = 9
So 40490-13-9 is a valid CAS Registry Number.