2028-61-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2028-61-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,2 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2028-61:
(6*2)+(5*0)+(4*2)+(3*8)+(2*6)+(1*1)=57
57 % 10 = 7
So 2028-61-7 is a valid CAS Registry Number.