25791-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25791-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,7,9 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 25791-89:
(7*2)+(6*5)+(5*7)+(4*9)+(3*1)+(2*8)+(1*9)=143
143 % 10 = 3
So 25791-89-3 is a valid CAS Registry Number.