75520-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75520-53-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,5,2 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75520-53:
(7*7)+(6*5)+(5*5)+(4*2)+(3*0)+(2*5)+(1*3)=125
125 % 10 = 5
So 75520-53-5 is a valid CAS Registry Number.