25297-57-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25297-57-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,2,9 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 25297-57:
(7*2)+(6*5)+(5*2)+(4*9)+(3*7)+(2*5)+(1*7)=128
128 % 10 = 8
So 25297-57-8 is a valid CAS Registry Number.