259-56-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 259-56-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,5 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 259-56:
(5*2)+(4*5)+(3*9)+(2*5)+(1*6)=73
73 % 10 = 3
So 259-56-3 is a valid CAS Registry Number.