5513-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5513-75-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,1 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5513-75:
(6*5)+(5*5)+(4*1)+(3*3)+(2*7)+(1*5)=87
87 % 10 = 7
So 5513-75-7 is a valid CAS Registry Number.