251909-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 251909-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,9,0 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 251909-45:
(8*2)+(7*5)+(6*1)+(5*9)+(4*0)+(3*9)+(2*4)+(1*5)=142
142 % 10 = 2
So 251909-45-2 is a valid CAS Registry Number.