81261-25-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81261-25-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,6 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81261-25:
(7*8)+(6*1)+(5*2)+(4*6)+(3*1)+(2*2)+(1*5)=108
108 % 10 = 8
So 81261-25-8 is a valid CAS Registry Number.