56909-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56909-68-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,9,0 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 56909-68:
(7*5)+(6*6)+(5*9)+(4*0)+(3*9)+(2*6)+(1*8)=163
163 % 10 = 3
So 56909-68-3 is a valid CAS Registry Number.