493028-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 493028-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,3,0,2 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 493028-83:
(8*4)+(7*9)+(6*3)+(5*0)+(4*2)+(3*8)+(2*8)+(1*3)=164
164 % 10 = 4
So 493028-83-4 is a valid CAS Registry Number.