25311-80-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25311-80-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,3,1 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 25311-80:
(7*2)+(6*5)+(5*3)+(4*1)+(3*1)+(2*8)+(1*0)=82
82 % 10 = 2
So 25311-80-2 is a valid CAS Registry Number.