25261-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25261-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,2,6 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 25261-56:
(7*2)+(6*5)+(5*2)+(4*6)+(3*1)+(2*5)+(1*6)=97
97 % 10 = 7
So 25261-56-7 is a valid CAS Registry Number.