961-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 961-28-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,6 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 961-28:
(5*9)+(4*6)+(3*1)+(2*2)+(1*8)=84
84 % 10 = 4
So 961-28-4 is a valid CAS Registry Number.