305-05-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 305-05-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,0 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 305-05:
(5*3)+(4*0)+(3*5)+(2*0)+(1*5)=35
35 % 10 = 5
So 305-05-5 is a valid CAS Registry Number.