5109-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5109-68-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,0 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5109-68:
(6*5)+(5*1)+(4*0)+(3*9)+(2*6)+(1*8)=82
82 % 10 = 2
So 5109-68-2 is a valid CAS Registry Number.