2305-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2305-68-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,0 and 5 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2305-68:
(6*2)+(5*3)+(4*0)+(3*5)+(2*6)+(1*8)=62
62 % 10 = 2
So 2305-68-2 is a valid CAS Registry Number.