13033-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13033-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,3 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13033-53:
(7*1)+(6*3)+(5*0)+(4*3)+(3*3)+(2*5)+(1*3)=59
59 % 10 = 9
So 13033-53-9 is a valid CAS Registry Number.