3513-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3513-45-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,1 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3513-45:
(6*3)+(5*5)+(4*1)+(3*3)+(2*4)+(1*5)=69
69 % 10 = 9
So 3513-45-9 is a valid CAS Registry Number.