25562-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25562-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,6 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25562-91:
(7*2)+(6*5)+(5*5)+(4*6)+(3*2)+(2*9)+(1*1)=118
118 % 10 = 8
So 25562-91-8 is a valid CAS Registry Number.