25508-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25508-64-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,0 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 25508-64:
(7*2)+(6*5)+(5*5)+(4*0)+(3*8)+(2*6)+(1*4)=109
109 % 10 = 9
So 25508-64-9 is a valid CAS Registry Number.