128-82-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128-82-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,2 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128-82:
(5*1)+(4*2)+(3*8)+(2*8)+(1*2)=55
55 % 10 = 5
So 128-82-5 is a valid CAS Registry Number.