25205-84-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25205-84-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,2,0 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 25205-84:
(7*2)+(6*5)+(5*2)+(4*0)+(3*5)+(2*8)+(1*4)=89
89 % 10 = 9
So 25205-84-9 is a valid CAS Registry Number.