25021-53-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25021-53-8 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 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 25021-53:
(7*2)+(6*5)+(5*0)+(4*2)+(3*1)+(2*5)+(1*3)=68
68 % 10 = 8
So 25021-53-8 is a valid CAS Registry Number.