25020-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25020-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,0,2 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 25020-73:
(7*2)+(6*5)+(5*0)+(4*2)+(3*0)+(2*7)+(1*3)=69
69 % 10 = 9
So 25020-73-9 is a valid CAS Registry Number.